# AP (Advanced Placement) Physics(B-C): Questions 170 - 172 of 921

Access detailed explanations (illustrated with images and videos) to 921 questions. Access all new questions- tracking exam pattern and syllabus changes. View the complete topic-wise distribution of questions. Unlimited Access for Unlimited Time!

View Sample Explanation or View Features.

Rs. 450.00 or

How to register?

## Question number: 170

Edit
MCQ▾

### Question

A test car finishes a race, but its brakes have failed completely so driver engages a parachute from the rear of the car to slow down. Initially, it is traveling at , and in it has slowed down to . What is the magnitude of the average force exerted on the car by the parachute?

### Choices

Choice (5)Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

## Question number: 171 (1 of 2 Based on Passage) Show Passage

Edit
MCQ▾

### Question

The figure shows a top view of a wheel and axle system, with four forces applied to it so that the forces produce torques. Each forces are assumed to be applied on a tangent to either the wheel or the axle. The wheel has a radius of , and the axle has a radius of . If the rotational inertia of wheel and axle system is , then what is the angular acceleration of the system?

### Choices

Choice (5)Response

a.

clockwise

b.

counterclockwise

c.

counterclockwise

d.

clockwise

e.

All of the above

## Question number: 172 (2 of 2 Based on Passage) Show Passage

Edit
MCQ▾

### Question

The figure shows a top view of a wheel and axle system, with forces and applied at a tangent in each cases. The radius of the wheel is , and the radius of the axle is . What is the net torque on the wheel?

### Choices

Choice (5)Response

a.

Clockwise

b.

Counterclockwise

c.

Clockwise

d.

Counterclockwise

e.

All of the above

Developed by: