HARD
AS and A Level
IMPORTANT
Earn 100

A wooden block of mass 6 kg is being dragged along a horizontal surface by a force of 10 N. It accelerates from 1 ms-1 to 3 ms-1 in 4 s. Find the size of the friction force acting on the wooden block.

Important Questions on Force and Motion in One Dimension

HARD
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2B>Q 12
A motorcyclist is travelling at 20 m s-1 on level road when she approaches roadworks and slows down to 10 ms-1 over a distance of 250 m.The combined mass of the motorcyclist and the motorcycle is 360 kg. There is air resistance of 80 N. Find the braking force of the motorcycle.
MEDIUM
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2B>Q 13
An aeroplane of mass 8 tonnes is flying horizontally through the air at 240 m s-1. There is air resistance of 20 kN. The pilot reduces the driving force from the engines to slow to 160 m s-1 over 40 s before starting to descend. Find the magnitude of the reduced driving force.
HARD
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2B>Q 14
A car of mass 1400 kg slows down from 30 m s-1 to 20 m s-1 when the driver sees a sign for reduced speed limit 400 m ahead. There is air resistance of 1000 N. Determine whether the driver needs to provide a braking force or just reduce the amount of driving force exerted, and find the size of the force.
MEDIUM
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2C>Q 3
A ball is dropped from a height of 20 m. Find the time taken to hit the ground.
MEDIUM
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2C>Q 4
A water fountain projects water vertically upwards with initial speed 10 m s-1. Find the maximum height the water reaches.
EASY
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2C>Q 5
A ball is thrown vertically downwards with speed 5 m s-1 from a height of 10 m. Find the speed with which it hits the ground.
EASY
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2C>Q 6
A wrecking ball of mass 1 tonne is dropped onto a concrete surface to crack it. It needs to strike the ground at 5 m s-1 to cause a crack. Find the minimum height from which it must be dropped.
HARD
AS and A Level
IMPORTANT
Cambridge International AS & A Level Mathematics : Mechanics Course Book>Chapter 2 - Force and Motion in One Dimension>EXERCISE 2C>Q 7
A coin of mass 0.05 kg is dropped from the top of the Eiffel Tower, which is 300 m tall. It experiences air resistance of 0.01 N. Find the speed with which the coin hits the ground.