Newton's Second law

What is the force needed on a mass of 5 kg if it accelerates at 5 m/s²?

• 10 N

• 25 N

• 1 N

• 25 0N

What is the force needed to accelerate a car with a mass of 1565 kg at 7 m/s²?

• 15 kN

• 11 kN

• 4 kN

• 10 kN

A sprinter with a mass of 65 kg accelerates at the start of a race at 3.4 m/s². What resultant forward force is provided?

• 221 N

• 1302 N

• 145 N

• 256 N

A bobsleigh in the Winter Olympics accelerates at 12 m/s². It has a mass of 660 kg and the two-man crew are 70 kg and 82 kg. What is the resultant force pushing the bobsleigh forwards?

• 4 kN

• 7 kN

• 2 kN

• 10 kN

A toad leaps forward with an acceleration of 2.1 m/s². Its legs provide a force of 6.46 N. What is the toad’s mass?

• 1 kg

• 7 kg

• 3 kg

• 2 kg

Force is measured in...

• Joules

• Newtons

• Metres

• Ohms

What would be the acceleration of a sailing boat which has a mass of 848 kg if the wind pushed it forwards with a force of 2671.2 N?

• 3.2 m/s²

• 6.4 m/s²

• 4.1 m/s²

• 2.9 m/s²

What is the mass of a golf ball that accelerates at 400 m/s² from the tee when a club hits it with a force of 24 N?

• 600 g

• 60 g

• 6 g

• 0.06 g

A cyclist with a mass of 75 kg accelerates at a rate of 2.5 m/s². What is the force exerted by the cyclist?

• 187.5 N

• 150 N

• 200 N

• 250 N

In Physics, mass is measured in...

• Gg

• mg

• g

• kg