# 112 - Kinematics Questions Answers

The velocity of a particle is defined by Vx=100-t^(3/2) and Vy=100+10t-2t^(2) Where V is in m/sec and t is in seconds. The radius of curvature at the top of its path is?

**Asked By: DEN**

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Two balls A and B are simultaneously released on two frictionless inclined planes from the position shown. The inclined planes have equal inclinations. The balls pass through a particular horizontal level 12s and 4s after they were released. How long after they were released will they be closest to each other?

**Asked By: MUDIT**

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**Joshi sir comment**

Question in based on a figure, yet it is not provided.

Please update it for getting the solution.

Thanks

A projectile is fired with velocity u at entrance A of a horizontal tunnel of length L and height H. The minimum value of u for which projectile will reach the other end of the tunnel without touching the top of the tunnel is

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**Joshi sir comment**