Mechanics> Motion in 1 dimention...

A stone is projected vertically upwards from the ground and 3s later another stone is projected with same speed.The 2 meet at a height 20m above the ground.Find the velocity of projection.

raunak samanta , 14 Years ago

Grade 11

1 Answers

Jaya IITK

displacement same

s1=s2=20

ut1-1/2g t1^2=20

3u-1/2 gt^2=20...... eqn. 1

s2=20

u(t-3)-1/2 g (t-3)^2=20 ...... eqn. 2

solving we get u

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Last Activity: 14 Years ago

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Mechanics> Motion in 1 dimention...

A stone is projected vertically upwards from the ground and 3s later another stone is projected with same speed.The 2 meet at a height 20m above the ground.Find the velocity of projection.

raunak samanta , 14 Years ago

Jaya IITK

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