Q 74

A jet plane is launched from a catapult on an aircraft carrier.In 2.0 s it reaches a speed of 42 m/s at the end of the catapult.Assuming the acceleration is constant,how far did it travel during those 2.0 s?
A)16 m
B)24 m
C)42 m
D)84 m

Q 75

A car starting from rest accelerates at a constant 2.0 m/s^{2} for 10 s.It then travels with constant speed it has achieved for another 10 s.Then it finally slows to a stop with constant acceleration of magnitude 2.0 m/s^{2}.How far does it travel after starting?
A)200 m
B)300 m
C)400 m
D)500 m

Q 76

A car increases its forward velocity uniformly from 40 m/s to 80 m/s while traveling a distance of 200 m.What is its acceleration during this time?
A)8.0 m/s^{2}
B)9.6 m/s^{2}
C)12 m/s^{2}
D)24 m/s^{2}