Question

A ball is gently drop from 20 m. If its velocity increases at the rate of 5m/s2 with what velocity will it strike the ground? After what time will it strike the ground?​

Answer 1

u=0m/sec. ( gently dropped)

a= 5m/sec²

s= 20m

v= ?

By 3rd Kinematical equation,

v² = u² + 2as

v² = 0² + 2 (5)(20)

v² = 200

v= 10√2

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Answer 2

Answer:

U

=0m/sec. ( gently dropped)

a= 5m/sec²

s= 20m

v= ?

By 3rd Kinematical equation,

v² = u² + 2as

v² = 0² + 2 (5)(20)

v² = 200

v= 10√2