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Which of the following has three significant digits?

On takeoff, a rocket accelerates from rest at a rate of 50 m/s2 for exactly 1 minute. The rocket’s speed after this minute of steady acceleration will be ____ m/s.

A cart starts from rest and accelerates at 4.0 m/s2 for 5.0 s, then maintain that velocity for 10 s, and then decelerates at the rate of 2.0 m/s2 for 4.0 s.  What is the final speed of the car?

When an object is released from rest and falls in the absence of friction, which of the following is true concerning its motion?

How many m/s is 50 mi/h equivalent to? (1 mi = 1609 m.)

Which one of the following quantities is NOT a speed?

Solve for the unknown variables: (8, 3) + (b, 2) = (4, a).

The graph represents the straight line motion of a car. How far does the car travel between t = 2 s and t = 5 s?

Suppose that a car traveling to the East (+x direction) begins to slow down as it approaches a traffic light. Make a statement concerning its acceleration.

A projectile is launched with an initial velocity of 60.0 m/s at an angle of 30.0° above the horizontal.  What is the maximum height reached by the projectile?