Forces, Movement, Shape, and Momentum

Explain, using the equation F = m × a, what happens to the acceleration of an object if its mass is doubled while the force remains the same.

An electric scooter of mass 12 kg is acted on by a resultant force of 18 N.

Calculate the acceleration of the scooter. Give your answer to 2 decimal places.

A delivery robot of mass 10 kg receives an unbalanced force of 40 N forwards as it starts to move. Calculate the acceleration of the robot. Give your answer in m/s².

Which of the following increases the acceleration of an object when the unbalanced force stays the same?

Explain what will happen to the acceleration of a suitcase if a larger force is applied to it while its mass stays the same. Use the relationship F = m × a in your answer.

State what is meant by the stopping distance of a vehicle.

Give two different factors that can increase the thinking distance of a driver.

Describe how the condition of the tyres and the road surface affect the braking distance of a car. Explain your answer.

A car is travelling at 60 mph. The thinking distance is 18 m and the braking distance is 55 m. Calculate the total stopping distance.

State what is meant by the 'stopping distance' of a vehicle, and name its two components.