Question

a body of mass 2kg is projected vertically up with velocity 5ms the work done on the body by gravitational force before it is brought to rest momentarily is​

Answer 1

Answer:

here u= 5m/s

v=o m/s

g=9.8m/s

now v^2=u^-2gh

0=25-19.6h

h=1.27

=1

work done by the gravitational force is given by mgh =

$2 \times 9.8 \times 1$

19.6