A projectile is launched with an initial velocity of 30 m/s at an angle of 30 degrees with the horizontal. Neglecting air resistance and assuming g = 10 m/s^2, what are the components of the initial velocity?

Horizontal: 25.98 m/s, Vertical: 15 m/s

Horizontal: 15 m/s, Vertical: 25.98 m/s

Horizontal: 30 m/s, Vertical: 0 m/s

Horizontal: 15 m/s, Vertical: 15 m/s

A particle undergoes uniform circular motion. Which of the following statements are true?

Its acceleration is directed towards the center of the circle.

The velocity of the ball is zero.

The acceleration of the ball is g downwards.

The acceleration of the ball is zero.

The total time of flight t = 2u/g

The maximum height reached is u^2/(2g)

The displacement at time t is zero

The average velocity over the entire journey is zero

Physics Mechanics & Kinematics Numerical problems from HC Verma - Test Paper