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The displacement versus time for a certain particle moving along the x axis is shown. The average velocity in the time intervals 2 to 4 s is :

A car starts from rest and goes down a slope with a constant acceleration of 5 m/s2. After 5 s the car reaches the bottom of the hill. Its speed at the bottom of the hill, in meters per second, is:

  If you are driving 72 km/h along a straight road and you look to the side for 4.0 s, how far do you travel during this inattentive period?

The coordinate-time graph of an object is a straight line with a positive slope.The object is:

Displacement can be obtained from:

Acceleration can be obtained from:

Velocity can be obtained from:

If car A passes car B, then car A must be ____.

Calculate the following problem and express your answer with the correct number of significant digits 3 x 16

A jet fighter plane is launched from a catapult on an aircraft carrier.  It reaches a speed of 42 m/s at the end of the catapult, and this requires 2.0 s.  Assuming the acceleration is constant, what is the length of the catapult?