Physics, asked by shnayasheikh, 1 year ago

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

Answers

Answered by xprt12321
2
20 m/s is the right answer
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shnayasheikh: Its really short
xprt12321: question is not known by its length but the method that is used
Evajiju: Hey, your's is so small and not at all in step by step
xprt12321: by the way in competitive exam short methods are the best for max time
Evajiju: oh
xprt12321: yaa
Evajiju: ko ko hm
Answered by Evajiju
4
I will do in step by step shnayasheikh:-

Displacement=s=20m

Initial velocity=u=0

Acceleration=a=10m/s^2

Using

2as=v^2-u^2

v^2=2*10*20

v^2=20^2

final velocity =20m/s


Hope it helps u


Evajiju: Hi, step by step
Evajiju: Ans is:- 20m/s
Evajiju: okay dear
Evajiju: yeah yeah yeah yeah yeah
shnayasheikh: Ok
Evajiju: thnx
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