Science, asked by vaishnav1143, 9 months ago

a ball is projected from a building of height 20m at a speed of 30 m/sec making an angle 30 degrees then time after which ball strikes the ground is...(take g=10m/s²)

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Answers

Answered by swapnilsarje17
1

Answer:

Given :  u=20 m/s     θ=30o      g=10 m/s2

We get  sinθ=sin30o=21​

Maximum height reached   H=2gu2sin2θ​=2020×20×(21​)2​=5m

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