Question

An object of mass 1 kg is made to slide down a smooth inclined plane of length 20m. If the kinetic
energy possessed by the body at the bottom of the plane is 100 J, then the inclination of the plane
with the horizontal is : (take g = 10 ms-2)
(A) 45°
(B) 37°
(C) 60°
(D) 30°

who will give correct as well as with full solution will be marked as brainlist.
don't give answer without details of answer

give answer fast​

Answer 1

Answer:

Gain in kinetic energy = potential energy so

U=mgh sintheta

100=1*10*20*sin theta

1/2= sin theta

Theta =30

Here sintheta is due to vertical component of h

Answer 2

Answer:

answer d is correct 30 degree