Question

A particle of mass 1.5 kg is projected vertically upwards from ground with a speed of 30m/s. What
will be the work done by the gravitational force of earth on the particle for the initial 3s.
[Take g = 10m/s)
(a) 675 J
(b) 525 J
(c)-600 J
(d) -675 J​

Answer 1

Answer:

D)-675

Explanation:

potential energy = mgh

m=1.5

g=10