Question

On a certain planet, a body of mass 100 kg is

projected downwards at 5 ms–1 from a height of

10 m. If it hits the ground at 10 ms–1, find the

body’s weight on that planet.
Answer should be 375N
PLEASE answer only if you know fast ​

Answer 1

Answer:

Answer given in attachment please refer

Answer 2

Given, mass,m = 100kg

u = 5m/s

v = 10 m/s

h = S = 10m

Since, v² = u² + 2gS

(10)² = (5)² + 2×g×10

= 100 = 25 + 20g

= 100 - 25 = 20g

= 20g = 75

= g = 75/20

= g = 13/4 = 3.25

100 × 3.25 = 325 Newton

Therefore, the body weight on the planet is 325 Newton.