Question

A paratrooper is falling down with uniform velocity and also
rotating with a constant angular velocity of 0.2 rad/sec. The body
satisfies ______
A. First condition of equilibrium but not second

B. Second condition of equilibrium but not first

C. First and second condition of equilibrium

D. Neither First nor the second condition of equilibrium

Answer 1

Answer:

option # B 2nd condition of equilibrium

Explanation:

1st condition of motion deals with the static bodies.

2nd condition of equilibrium deals with the uniform motion in liner motion as well as in angular motion

so form the question it is clear that the body is falling with uniform motion the amount of force acting downward is equal to the force in upward direction so net resultant is equal to zero.

Σf= 0

now the body is moving with constant angular velocity so there is no acceleration it means there is no change. so ∑τ = zero

so it satisfy the 2nd equation of equilibrium. which is the right answer

Answer 2

Answer:

1. C first and second condition of equilibrium.