1) A baseball pitcher makes a big mistake and throws the ball straight up. If it reaches a maximum height of 15 m find. a) the initial velocity he threw it up with. b) the total time the ball spent in the air. c) the ball's average velocity on the way up to the top. d) the ball's velocities when its displacement was equal to 8.0 m. e) the times when the ball was 8,0 m above the ground.

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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.