Full solution with appropriate drawing/illustration of the problem. Include the formula used also. Answers are all given. I will give feedback if satisfy.

1. An automobile's speed increases uniformly from 8 m/s to 32 m/s while covering 80m. Find the acceleration and the time taken.

Answer: 6m/s ; 4s

2. A stone is projected vertically upward with a speed of 14m/s from a tower 100m high. Find the maximum height attained and the speed with which it strikes tge ground.

Answer: 110m ; 46.4 m/s

3. A package moving upward in an elevator at a uniform rate of 3 m/s falls off and strikes the bottom of the shaft in 2s.

a.) How long will it take the package to reach its maximum height?

b.) How far above the bottom of the shaft was the package when it fell off and

c.) 1/4 s after falling off the elevator?

Answers:

a.)0.31s b.)13.6m c.) 14m