Question

a body of mass 1.5 kg is thrown vertically upward with an initial velocity 30 m/s what will be its potential and kinetic energy at the highest point​

Answer 1

Step-by-step explanation:

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