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Mr. Mock sets up a demonstration on a moving bus. The device consists of a ball attached with a string to a magnet. He uses the magnet to hang the ball from the top of the school bus as the bus turns the corner at a constant speed. What will the ball do?

A) Nothing changes.
B) The ball rolls forward slowly.
C) The ball rolls forward rapidly.
D) The ball rolls backward.

Respuesta :

onyebuchinnaji

When the bus turns the corner at a constant speed, the velocity of the ball will change and the ball will rolls forward slowly.

Motion of an object at constant speed

The speed of an object is defined by magnitude only while the velocity of an object is defined by both magnitude and direction.

Suffice it to say that when an object is moving at a constant speed changes direction, its velocity will change.

Velocity of ball

The velocity of the ball can be determined by modelling the speed of the car in the bend or corner.

v = √μrg

where;

  • μ is coefficient of friction
  • r is radius of the corner
  • g is gravity

Since the velocity of the bus changes, the velocity of the ball will change.

Thus, when the bus turns the corner at a constant speed, the velocity of the ball will change and the ball will rolls forward slowly due to magnetic force acting as resistive force.

Learn constant speed here: https://brainly.com/question/2681210

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