Mathematics · Laws of Motion
A 4 kg object is moving at a speed of 5 m/s. The constant force needed to stop the object in 5 × 10-4 s will be:
- 14 × 104 N in the opposite direction of motion✓
- 2100 N in the opposite direction of motion
- 320 N in the direction of motion
- 44 × 104 N in the direction of motion
Correct answer
4 × 104 N in the opposite direction of motion
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