Explanation

Explanation

Explanation

Explanation

For maximum range, the angle of projection should be 45°.

However, since that's not an option, we need to find the angle closest to 45°.
Among the given options:

• - 35° is closer to 45° than 20°.
• - 60° is closer to 45° than 70°.

However, 35° is closer to 45° than 60°.
So, the correct answer is: 35°.

Explanation

Explanation

Explanation

Explanation

To find the moment of inertia (I) of the rotating body, we can use the formula:

τ = I × α

where τ is the torque, I is the moment of inertia, and α is the angular acceleration.

Given:

τ = 2 × 10^-4 Nm

α = 4 rad/s^2

Rearranging the formula to solve for I:

I = τ / α

= (2 × 10^-4 Nm) / (4 rad/s^2)

= 0.5 × 10^-4 kgm^2

Explanation

Explanation