Question

# FALSE STATEMENTS: All of the statements (a-e) below are false or nonsensical, either partially, or entirely....

FALSE STATEMENTS: All of the statements (a-e) below are false or nonsensical, either partially, or entirely. Give a brief explanation, sketch, and/or counter-example why, or under what circumstances the statement is false. Note that some of the statements may have multiple errors.

1 An object with centripetal acceleration must have a non-zero net torque acting on it.

2 Damping decreases the period of oscillation through a restoring force that opposes motion.

3 The power delivered on an object is equal to the impulse by the net force divided by the time.

4 A floating object has greater pressure on it pushing up than the force of gravity pulling it down.

5 in. projectile motion max height is achieved when the velocity is zero

The direction of centripetal force is towards the centre .So, from the formula of torque distance is zero. So, torque is zero.

Because due to damping time period is decreases but not due to the restoring force it is just because of damping force which are directly proportional to the velocity.

Because power is work /time and work is force × displacement.

So, power = (force × displacement)/time

Not impluse =force/time.

Beacue if a body is floating on a surface which means net force is zero on it.hence upward force = downward force.

Only the vertical component of velocity is zero at maximum height not the whole velocity.