David Sang and Graham Jones Solutions for Chapter: Forces: Vectors and Moments, Exercise 3: Questions

Author:David Sang & Graham Jones

David Sang Physics Solutions for Exercise - David Sang and Graham Jones Solutions for Chapter: Forces: Vectors and Moments, Exercise 3: Questions

Attempt the free practice questions on Chapter 4: Forces: Vectors and Moments, Exercise 3: Questions with hints and solutions to strengthen your understanding. Physics for Cambridge International AS & A Level Coursebook 3rd Edition Digital Access solutions are prepared by Experienced Embibe Experts.

Questions from David Sang and Graham Jones Solutions for Chapter: Forces: Vectors and Moments, Exercise 3: Questions with Hints & Solutions

EASY
AS and A Level
IMPORTANT

The person in Figure is pulling a large box using a rope. Use the idea of components of a force to explain why they are more likely to get the box to move if the rope is horizontal (as in a) than if it is sloping upwards (as in b ).

Question Image

Why is it easier to move the box with the rope horizontal?

EASY
AS and A Level
IMPORTANT

A crate is sliding down a slope. The weight of the crate is 500 N. The slope makes an angle of 30° With the horizontal. Draw a diagram to show the situation. Include arrows to represent the weight of the crate and the contact force of the slope acting on the crate.

MEDIUM
AS and A Level
IMPORTANT

A crate is sliding down a slope. The weight of the crate is 500 N. The slope makes an angle of 30° With the horizontal. Calculate the component of the weight down the slope.

EASY
AS and A Level
IMPORTANT

A crate is sliding down a slope. The weight of the crate is 500 N. The slope makes an angle of 30° with the horizontal. Explain why the contact force of the slope has no component down the slope.

EASY
AS and A Level
IMPORTANT

A crate is sliding down a slope. The weight of the crate is 500 N. The slope makes an angle of 30° with the horizontal. What third force might act to oppose the motion? In which direction would it act.