Question

A body threw with velocity 100m/s from height 500m. Calculate the velocity by with body strike to the ground. Also find time interval of motion.

Answer 1

Explanation:

Calculating the time taken by the projectile to reach the ground:

s=ut+

2

1

gt

2

500m=(100m/s)t+

2

1

(9.8m/s

2

)t

2

500=100t+4.9t

2

t=4.15s

Calculating the distance of the target from the hil:

Range = ut=(100m/s)(4.15s)=415m

Calculating the velocity with which the projectile hits the ground:

v=100m/s+(9.8m/s

2

)(4.15s)

2

=268.78m/s

BRO NOT SHURE...

HOPING IT WOULD BE HELPFUL !!