Peter propels a penguin with mass 10.0kg from 2.50m above the ground at an angle 30.0o from the horizontal axis (ground), with an initial speed of 15.0 m/s.  Assuming the penguin remains rigid (scared, so assume the particle model!) and ignoring any rotational effects, At what time does the penguin land on the ground?   a. 3.62 seconds   b. 2.42 seconds   c. 1.81 seconds   d. 1.53 seconds

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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.