Question 19
MediumOriginal questionWhat force is needed to give a 5 kg trolley an acceleration of 2 m/s²?
Show the answer and explanation
CorrectNot quiteAnswer D
Correct answer: D
Explanation
By Newton's second law, F = m × a.
F = 5 × 2 = 10 N.
Worth noting
2.5, 3 and 7 come from dividing, subtracting or adding the two numbers instead of multiplying them.
- Concept
- Newton's second law, F = ma
- Typical timeTypical
- 60 s
- Your timeYours
- —
Practise this chapter →
Ten questions from Everyday Physics, at your own pace.