Question

a body was thrown vertically upward with a velocity 9.8ms-¹. Find velocity at time 3s and 17s​

Answer 1

Answer:

1s

Explanation:

Total time of flight of a projectile =  

g

2u  

y

​

 

​

 

where, u  

y

​

 is the vertical velocity of the projectile =usinθ

Thus, time of flight =  

g

2usinθ

​

 

                               =  

9.8

2×9.8×sin30  

∘

 

​

Answer 2

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