MCQ practice · SSC Physics Board questions · Chapter 3: Force
What distance does the car cover 10 s after the push?
Think it through first, then pick an option.
- a 110 m
- b 100 m
- c 60 m
- d 50 m
Answer and explanation
Correct answer: c 60 m
a = F/m = 1 m/s²; v = u + at = 1 + 10 = 11 m/s; s = (v² − u²)/2a = (121 − 1)/2 = 60 m.
Why the other options are wrong
- a 110 m: 110 comes from just multiplying the final velocity 11 by 10 s; but the velocity was not constant, it grew steadily.
- b 100 m: 100 comes from ignoring part of the motion; both the initial velocity and the acceleration matter.
- d 50 m: 50 comes from using only ½at² = ½ × 1 × 10²; the initial velocity of 1 m/s adds another 10 m.
Your account is open, so all 30,000+ MCQs from every chapter are yours. Start practising SSC Physics →
Want to keep going?
A free account carries you on to the next questions and opens 30,000+ MCQs from every chapter. Join before launch and Chirkut bundles are 60% off.
The ones you missed, worth one more look