Question

. A body of mass 2 kg is thrown up at a velocity of 10 m/s. Find the kinetic energy of the body at

the time of thrown. Also find the potential energy of the body at the highest point.

( The value of g =9.8m/s2

)​

Answer 1

Answer:

100 J for both

Explanation:

Kinetic Energy = 1/2 × Mass × Velocity^2 = 1/2 × 2 × 10 × 10 J = 100 J

Now, Initial Velocity, u = 10 m/s

Acceleration, g = -9.8 m/s^2

Final Velocity, v = 0 m/s

Height, h = (v^2 - u^2)/2g = 100/19.6 m =

Potential Energy = Mass × Acceleration,g × Height = 2 × 9.8 × 100/19.6 J = 100 J