Work, Energy, and Power — Physics STD 11 Science — Question

A particle is in linear simple harmonic motion between two points, A and B, 10cm apart. Take the direction from A to B as the positive direction and give the signs of velocity, acceleration and force on the particle when it is: At the end A.

Find the acceleration and velocity of a ball at the instant it reaches its highest point if it was thrown up with velocity v.

What will happen to a hydrogen balloon released on the moon?

When a ball hits a wall with a velocity of 50m/s and bounces back with the same speed, what is the change in velocity of the ball?

When is the tension maximum in the string of a simple pendulum?

Answer carefully, with reasons: Is the total linear momentum conserved during the short time of an elastic collision of two balls?

Name two absolute units of force. How are they related?

What is the angle between the equatorial plane and the orbital plane of Geostationary satel lite?

What fraction of the total energy is kinetic energy when the displacement is one-half of amplitude?

Why does the rocket have a conical shape?