Question

에 A body of mass 2 kg is thrown vertically upwards with an initial velocity, 20 m/s. What will be its potential energy at the end of 2s? (g = 9.8m/s2) ​

Answer 1

Answer:

Given ,

Mass of body ,m=2 kg

Initial velocity u=20m/s

Height reached at t=2secs h=ut−

2

1

gt

2

⟹h=20×2−

2

1

×10×2

2

⟹h=20 m

Potential energy , P=mgh=2×10×20=400 J

Explanation:

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