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a body from height h strikes ground with 2 km/h same weighted body from same height thrown down with initial velocity of 4km/h . Final v of 2 and body when striking ground??

a body from height h strikes ground with 2 km/h  same weighted body from same height thrown down with initial velocity of 4km/h . Final v of 2 and body when striking ground??

Grade:12

1 Answers

Vikas TU
14149 Points
6 years ago
With 2km/hr.
2^2 = u^2 + 2gh
u = root(4 – 2gh)
 
With 4km/hr as initial velocty we get,
v^2 = 16 + 2gh
or
v = root(16+2gh)

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