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)...

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)...

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?

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

a 1000kg satellite orbits the Earth at a radius of 50,000 km. What is the acceleration of the satellite? The direction of the acceleration? What is the name of the force providing the acceleration...

Chris drives a 1200 kg car straight at a brick wall. He is accelerating at a rate of 4 m/s^2. He started from rest and accelerated for 3 seconds, and began to hit the brakes when he was 9m away from...

find acceleration

That is the exact question.

Hello! I was going through my review questions and I got eight out of the ten questions done, but no matter what I do, I can't seem to figure out these two questions. Any help given would be highly...

1. Car 1 moves eastward with a constant speed of 20 m/s. Car 2, at rest on the side of the road, accelerates at 2 m/s squared to the east at precisely the instant Car 1 is beside it. How long does...

A diver hits the water at a velocity of 17.64 m/s from a 16 m high board. What is the diver's rate of deceleration when the diver reaches a depth of 1.85 m under water?

Finish this statement/phrase: "What does a constant slope mean in a velocity-time graph? Slope means acceleration. Therefore, if we have a constant slope, we have a constant ______." (1)...

The area of an acceleration-time graph is: (1) time (2) velocity (3) acceleration (4) displacement

the area of a velocity-time graph is: (1) velocity (2) acceleration (3) displacement (4) time

when velocity and acceleration are in the opposite direction, the motion is: (1) slowing down (2) speeding up (3) remaining the same

A hobbyist owns an ultralight airplane that requires a speed of 16 m/s in order to take off. Starting from a dead stop, the airplane engine can provide 3.2 m/s2 of average acceleration. The...

acceleration

A freight train pulls out of a rail yard and is traveling at 20 m/s after 300 seconds. What is the acceleration of the freight train in m/s2

You hit a golfball upward with your pitching wedge. The position function of the ball is s(t)=-3t^2+30t where the origin is at ground level and the positive direction is vertically up. (distance...

An object is moving in a straight line from a fixed point. The displacement s(in meters) is given by s=-2t^2+28t+45, t is greater than or equal to 0, where t is in seconds. 1...

An object is moving in a straight line from a fixed point. The displacement s(in metres) is given by s=-2t^2+28t+45, t is greater than or equal to 0, where t is in seconds. Find...

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