Question

A body of mass 2 kg is thrown up with a velocity of 36 km/h. Find the potential
energy at the highest point.

Answer 1

Ques - A body of mass 2 kg is thrown up with a velocity of 36 km/h. Find the potential energy at the highest point .

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Given,

Mass of body ,m=2 kg

Initial velocity u=20m/s

Height reached at t = 2secs , h = ut - 1/2gt²

=) h = 20 × 2 - 1/2 × 10²

=) h = 20 m

POTENTIAL ENERGY , p = mgh = 2 × 10 × 20 = 400 Joules.