Science, asked by sristi21, 1 year ago

A ball is gently dropped from height of 20 m. if its velocity increase uniformly at the rate of 10m s- 2 with what velocity will it strike the ground? after what time will it strike the ground ?


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Answers

Answered by Anonymous
2
Hope it helps...!!

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Given that,

Distance(s)= 20m

Initial velocity(u)= 0m/s

Acceleration= 10m/s^-2

Using the relation Distance time,

s=v^2- u^2=2a

s= v^2-0=2*10
20=v^2-0=20
v^2-0=20*20
v^2=400(underoot)
v=20 m/s

Time=v=u=at
20=0+10
20 upon 10=0+10(t)=
time= 2 secs

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Answered by RAAJSRIWASTAV3
5
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