A particle is projected upwards with velocity v=30 m/s. There are two points A and B at heights hA=25 m and hB=40 m. If the particle crosses point B twice in a time interval Δt then it will also cross A twice in a time interval equal to (g=10 m/s2)

A particle is projected upwards with velocity v=30 m/s. There are two

1.	A particle is projected upwards with velocity v=30 m/s. There are two points A and B at heights hA=25 m and hB=40 m. If the particle crosses point B twice in a time interval Δt then it will also cross A twice in a time interval equal to (g=10 m/s2)
Answer» A particle is projected upwards with velocity $v = 30 m/s$ . There are two points $A$ and $B$ at heights $h_{A} = 25 m$ and $h_{B} = 40 m$ . If the particle crosses point $B$ twice in a time interval $Δ t$ then it will also cross $A$ twice in a time interval equal to $(g = 10 {m/s}^{2})$

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A particle is projected upwards with velocity v=30 m/s. There are two points A and B at heights hA=25 m and hB=40 m. If the particle crosses point B twice in a time interval Δt then it will also cross A twice in a time interval equal to (g=10 m/s2)

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