128 Answered Questions for the topic Acceleration

Acceleration Physics Seconds Meters

03/16/16

Force and Acceleration
An engineer proposes a new roller coaster for daredevil teens and adults. Along with sizzling vertical loops and horizontal curves, her track would travel beneath a waterfall and into a dark tunnel... more
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Acceleration Physics Velocity Mass

03/15/16

Force and Acceleration
A coaster has a mass of 800 kg and a radius of 5m. What is the minimum speed required at the top of the track to ensure that the coaster does not leave the track?May use:Fc = Fn +FgFc = MAcAc = v^2... more
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03/07/16

Solving for Centripetal Force using an Free Body Diagram
Gabriella (75  kg) rides a roller coaster. What is her acceleration at the top of the vertical loop if she feels like her weight is 1200N?   What is Gabriella's acceleration at the... more
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Acceleration Math Physics Meters

02/03/16

Who wins the race? By how much time?
Two children who are bored while waiting for their flight at the airport decide to race from other end of the 20m long moving sidewalk to the other & back.  Philippe runs on the sidewalk at... more
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Acceleration Math Physics Distance

01/27/16

What is the distance between the stations?
A light-rail train going from one station to the next on a straight section of a track accelerates from rest at 1.0 m/s^2 for 20 s. It then proceeds at constant speed for 2100 m before slowing down... more
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Acceleration Math Physics Constant

01/27/16

What constant acceleration, in m/s^2, must a car have to go from 0 to 60mph in 10s?
What constant acceleration, in m/s^2, must a car have to go from 0 to 60mph in 10s?
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Acceleration Math Physics Speed

01/27/16

What is the train's acceleration after its wheel begins to stick?
A toy train is pushed forward and released at 2.0m with a speed of 0.5 m/s. It rolls at a steady speed for 2.0s, then one wheel begins to stick. The train comes to a stop at 5.0m from the point at... more
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Acceleration Math Physics Speed

01/27/16

What is her acceleration on the rough ice?
A speed skater moving across frictionless ice at 5.0m/s hits a 3.0-m-wide patch of rough ice, she slows steadily, then continues on at 3.7m/s. What is her acceleration on the rough ice? Use 2... more
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Acceleration Math Physics Equal

01/27/16

What is the magnitude of rock's acceleration immediately after being released?
A rock is thrown (not dropped) straight down from a bridge into the river below. What is the magnitude of rock's acceleration immediately after being released? Disregard air resistance. a) greater... more
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Acceleration Math Physics College

01/20/16

What is the magnitude of his displacement?
John walks 1.00 km north, then turns right and walks 1.00 km east.  His speed is 1.50 m/s during the entire stroll. a) What is the magnitude of his displacement, from beginning to end? b) If Jane... more
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Acceleration Physics

01/19/16

Jill has just gotten out of her car in the grocery store parking lot.
Jill has just gotten out of her car in the grocery store parking lot. The lot is on a hill and is tilted 3.0°. Twenty meters downhill from Jill, a little old lady lets go of a fully loaded shopping... more
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Acceleration Physics Mass Net Force

11/18/15

What will happen to the acceleration of the object?
A constant net force of 15 N acts on an object with a mass of 8 kg. As the mass of the object is increased, what will happen to the acceleration of the object? Explain.
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Acceleration Physics Collision

11/14/15

Explain what causes the passengers to be apparently pushed backward.
As a bus accelerates, the passengers on the bus are jolted toward the back of bus. Explain what causes the passengers to be apparently pushed backward.
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11/06/15

find the external force, acceleration of the two masses, find the tension of the rope of the two masses
A block of mass 2.21753 kg lies on a friction- less table, pulled by another mass 3.08244 kg under the influence of Earth’s gravity. The acceleration of gravity is 9.8 m/s2 . What is the magnitude... more
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11/06/15

answer in m/s2
A block of mass 4.29 kg lies on a frictionless horizontal surface. The block is connected by a cord passing over a pulley to another block of mass 3.61 kg which hangs in the air, as shown on the... more
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Acceleration Physics Meters Speed

11/01/15

What was the cannonball's final speed when it hit the soldier?
If a cannonball was shot off 20 meters away from a soldier, and it's acceleration was 5m/s^2. What was the cannonball's final speed when it hit the soldier?   Hint: The Initial speed was... more
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Acceleration Work Time Velocity

10/30/15

Car have mass m,its engine delivers power P.what's the minimum time in which car can be accelerated from rest to speed v
A car of mass m has an engine which can deliver power P.The minimum time in which car can be accelerated from rest to a speed v is(a) (mv^2)/2P(b) Pmv^2(c) 2Pmv^2(d) (mv^2)P/2
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Acceleration Physics Time Velocity

10/15/15

Physics Help Please?
Benjamin fires an arrow from a castle wall 10m high. It leaves the bow with a speed of 40m/s directed 37° above the horizontal.   a) Find the initial velocity components   b) Find the maximum... more
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Acceleration

10/05/15

the speed of a train increases from 100 km/hr to 250 km/hr in five minutes. what is its acceleration?
Acceleration formula
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Acceleration Physics

10/05/15

What is the car's average acceleration?
A car accelerates from 23m/s to 7m/s in 4 seconds. What is the car's average acceleration?   Multiple Choice: A) -4m/s^2 B) 5.75 m/s^2 C) 1.75m/s^2 D) 4 m/s^2   I know the answer is A)... more
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Acceleration Physics

10/05/15

As a ball falls, its acceleration is what?
As a ball falls, its acceleration is...   Multiple Choice: A) positive B) negative C) it has no acceleration   I know the answer is A) positive. But why? Please explain.
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Acceleration Physics Speed

10/05/15

Which of the following carts is experiencing an unbalanced force?
Which of the following carts is experiencing an unbalanced force?   Multiple Choice: A) A cart that is accelerating B) A cart that is traveling at a constant speed C) A cart that is at... more
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Acceleration Physics Mass Newtons

10/05/15

The same force will give a mass of 3M an acceleration of what?
A force of F newtons will give an object with a mass of M an acceleration of A. The same force will give a mass of 3 M an acceleration of: Multiple choice:a) 1/3 Ab) 3 Ac) Ad) 1/9 A I know the... more
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Acceleration Physics Mass Newtons

10/05/15

The same force will give a mass of 3 M an acceleration of what?
A force of F newtons will give an object with a mass of M an acceleration of A. The same force will give a mass of 3 M an acceleration of:   Multiple choice: a) 1/3 A b) 3 A c) A d) 1/9... more
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Acceleration Math Calculus

10/04/15

The equation of motion of a particle is s = t^3 - 3t, where is in meters and is in seconds.
Find the acceleration when the velocity is 0.   I know the function for acceleration is 6t so I thought the answer must be 0. However, the back of the book says the answer is 6. Is that an error?
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