115 Answered Questions for the topic Acceleration

Acceleration Physics

12/07/16

#### Calculate the acceleration of the system if the mass of block A is 0.83 kg and block b is 6.9 kg

The blocks A and B are connected by a piece of string. Block B rests on an inclined plane of 36 degrees and block a hangs vertically. The coefficient of friction between Block B and the inclined...
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Acceleration Physics

11/07/16

#### physics help

Marks: --/2A 17.9kg box is accelerating down a 35° incline. The coefficient of kinetic friction is 0.53. What is the acceleration of the box? Give your answer . . .in terms of m/s2. Do not include...
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09/25/16

#### What is the car's acceleration while braking?

A car accelerates uniformly from rest at 12.5 m/s^2 for 10 seconds. It then brakes to a rest over a distance of 1000 meters.

Acceleration Physics

06/23/16

#### what is the acceleration of the car?

Acceleration is sometimes expressed in multiples of g, where is the acceleration due to Earth's gravity. In a car crash, the car's velocity changes from to in In terms of g, what is the...
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#### Roller Coasters Accelerating

Are the following roller coasters accelerating? Yes or No? And explain why please.
A roller coaster speeding up?
A roller coaster speeding down?
A roller coaster moving in a straight lin at...
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#### Acceleration, Safe or Not?

At the bottom of the loop of your roller coaster, the velocity is 30 m/s and the radius of the loop is 50 m. Is the amount of acceleration riders will experience in this loop considered safe? Why?...
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Acceleration

05/28/16

#### need help with homework

Martin sells a stock investment for $26,000 on August 2, 2015. Martin's adjusted basis in the stock is $15,000.a. If Martin acquired the stock on November 15, 2014, calculate the amount and the...
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#### Force of gravity? Acceleration?

Mars has a mass of 6.4 × 1023 kg. It has a moon named Phobos with a mass of 1.07 × 1016 kg. a. If their centers are 9400 km apart, what is the force of gravity acting on Phobos?b. If the radius of...
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#### What is his acceleration down the hill?

Duane has a mass of 73 kg and slides down an icy hill on a sled. The hill has an angle of 15 degrees and there is no friction.
I know that acceleration is the change in velocity/ time but it...
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Acceleration

05/05/16

#### A car travelling 25 miles per hour accelerates for 10 seconds at 6.5 miles per hour per second. How fast is it going at the end of the 10 seconds?

I dont know how to figure this out.

Acceleration

03/24/16

#### Acceleration

An object has a constant acceleration of 40 ft/sec², an initial velocity of -20 ft/sec, and an initial position of 10 ft. Find the position function, s(t), describing the motion of the object.

#### PHYSICS: Minimum Velocity

What is the minimum velocity required of a roller coaster at the top of a vertical loop with a radius of 7 m?
SHOW ALL WORK PLEASE. May use if needed: Fc = Fn + Fg Fc = MAc Ac = v^2/r

#### 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...
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#### 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...
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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...
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#### 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...
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#### 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...
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#### 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?

#### 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...
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#### 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...
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#### 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...
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#### 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...
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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...
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#### 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.

#### 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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