Question

A ball is thrown in a vertically upward direction with a velocity of 10 metre per second if the acceleration of the stone during its motion is 5 metre per second square in a downward direction then what will be the height attained by the ball and what time will it be taken to reach there

Answer 1

Answer:

0.5s

Explanation:

Given, initial velocity, u=5ms−1

Final velocity, v=0

Since, u is upward & a is downward, it is a retarded motion. 

∴a=−10ms−2

Height attained by stone, s=?

Time take to attain height, t=?

(i) Using the relation, v2−u2=2as, we have

s=v2−u2/2a

=(0)2−(5)2/2×(−10)=1.25m

(ii) Using the relation, v=u+at

0=5+(−10)t or

t=5/10=0.5s

Answer 2

Answer:

Hi Mate

Here is ur answer.....

Explanation:

A stone is thrown in vertically upward direction with a velocity of 5 ms−1. If the acceleration of the stone during its motion is 10 ms−2 in the downward direction.