115 Answered Questions for the topic Acceleration

#### 1-D Kinematics of Particles

Particle 𝐴, which is initially at rest, wants to meet Particle 𝐵, however they are 𝑋𝑌𝑍 ft away from one another. The motion of particle 𝐴 heading toward 𝐵 is defined by the relation: 𝑠 = 1/𝑎2 where...
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Acceleration

04/17/20

#### A force of 100 N applied to an object produces an acceleration of 4.00 m/s2. Determine the force needed to give the object an acceleration of 16.0 m/s2

#### The 100m dash can be run by the best sprinters in 10.0 s.

A 65 kg sprinter accelerates uniformly for the first 50m to reach top speed, which he maintains for the remaining 50 meters.a) What is the average horizontal component of force exerted on his feet...
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10/13/19

#### if i drop a ball out of a window that is 5.00m above ground, how long will it take to hit the ground? what is the acceleration of a north moving truck slowing down?

what is the acceleration of a north moving truck slowing down?what is the direction of acceleration of an eastward moving sprinter speeding up?how fast is 337m/s in mph?

#### Small car colliding with large truck?

A small car collides with a large truck. Why do both vehicles experience the same magnitude of force? Wouldn't the large vehicle experience less force than the small one?

#### Why can't charged objects exert electrostatic forces on heavier objects?

We know that, for example, amber rubbed with fur attracts bits and pieces of straw, paper, Styrofoam, etc. which are all light objects. Why don't they attract heavier objects, likewise?

#### Bidirectional jerk motion on a stopping vehicle?

A stopping vehicle (say a car) has an apparent retardation (which may/may not be constant in magnitude) when force via brakes is applied.
I travel by subway trains, and I noticed an odd...
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#### what is the initial speed of the ball when it is projected into the air

A small ball is projected vertically upwards from a height of 3 meters above the groundThe ball hits the ground 2 seconds laterIf air resistance is negligible and the acceleration due to gravity is...
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Acceleration Physics

06/14/19

#### What is the acceleration of the rocket?

A rocket is fired upwards, starting at rest, and accelerating at a constant rate. During the 15th 1 second interval, the rocket travels 600 meters. What is the acceleration of the rocket?Please...
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Acceleration Physical Science

05/13/19

#### A car traveling down the road to the east experiences a negative acceleration. Which item below is a possible outcome? (Select all that apply.)

1.The car slows down, comes to a stop for an instant, then the car begins to move backwards.2.The car speeds up.3.The car slows down.4.The car comes to a stop.

Acceleration Physical Science

05/13/19

#### At what speed (in mph) was the potato launched from the gun?

Acceleration due to gravity on Earth is 9.81 m/s2 (32 ft/s2) toward the center of the planet. A potato is launched straight up from a potato gun and rises for 3.4 seconds before beginning to fall...
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Acceleration Physical Science

05/13/19

#### What is the speed of the car after the braking?

A driver moving at 25 m/s applies his brakes for 1.5 seconds causing a deceleration of 2.3 m/s2. (Hint: deceleration is just negative acceleration; the sign is important to your calculation.)

Acceleration Physical Science

05/13/19

#### What is the acceleration of a cyclist who starts from rest and speeds up uniformly to 15 m/s in 4.0 seconds? _

#### The acceleration due to gravity on the surface of Mars is 3.7 m/s^2. What is the acceleration due to gravity at a distance of 1 mars radius above the surface of Mars?

The acceleration due to gravity on the surface of Mars is 3.7 m/s^2. What is the acceleration due to gravity at a distance of 1 mars radius above the surface of Mars?What equation should I use for...
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04/22/19

#### Compute the acceleration of the two cars after collision

Car A was stopped when Car B hit Car A from behind
The two cars lock together and skid for 10 m before coming to a rest
The mass of Car A is 1800kg and the mass of Car B is 1200kg
The coefficient...
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#### Kinematics - Using equations

A bicycle travelling at 5ms^-1 undergoes uniform acceleration and travels a distance of 600m in 20s.Calculate:a) accelerationb) velocity at the end of 20s

#### A plane flies 1200 km in 2.5 hours. What is the average speed of the flight?

The answer choices are A) 480 km/hr B) 300 km/hrC) 1200 km/hrD) 200 km/hr

06/22/18

#### A car is traveling east at 25 m/s when it turns due north and accelerates to 35 m/s, all during a time of 6.0 s. Find magnitude of cars accelrtn.

A car is traveling east at 25 m/s when it turns due north and accelerates to 35 m/s, all during a time of 6.0 s. Calculate the magnitude of the car's average acceleration.

05/07/18

#### Motion in 3d - acceleration and its components

Hi
I have found the vector for the acceleration of a particle in 3d, however I have been asked now to give its component that is tangential to the trajectory of the particle. Can I get some...
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Acceleration

05/05/18

#### What is the acceleration for a car driving on the road?

What is the acceleration for a car driving on the road?

Acceleration

05/05/18

#### What the acceleration of an ant moving across the floor

What is the acceleration for an ant moving across the floor?

Acceleration Differentiation

04/21/18

#### Find the angular velocity of the system after 12 seconds

The angular acceleration of a system is described by the following equation: a(t)=d^2Radians/dt^2=10cos (5t).
Find the angular velocity of the system in radians after 14 seconds

03/02/18

#### Distance traveled derivative

The distance S covered by a car after t sec is given by: s=-t3 + 8t2 +20t (0≤t≤6)
Find the general expression for the car's acceleration at any time t (0≤t≤6). Show that the car is decelerating...
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Acceleration

01/21/18

#### A car is alone at a red light. When the light turns green, it starts at constant acceleration. After traveling 100.0 m, it is traveling at 15 m/s. What is the

A car is alone at a red light. When the light turns green, it starts at constant acceleration. After traveling 100.0 m, it is traveling at 15 m/s. What is the acceleration?

Acceleration

01/15/18

#### Amber moves from her desk to the door in 17 seconds. Her speed changes from rest to .5m/s. What is Amber’s average acceleration?

I don’t No the answer to this one and I cant figure out how to do it.

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