FORCE
Problem:
#14. A boy pushed a 4 kg chair across the floor. If the acceleration of the chair is 3 m/s², what is the net force exerted on the chair?
- A. 1,200 N
- B. 120 N
- C. 12 N
- D. 2 N
Given:
- m (mass) = 4 kg
- a (acceleration) = 3 m/s²
- F (Force) = ? (unknown)
- acceleration is measured in meters per second squared, m/s².
Solution:
F = m × a
= 4 kg × 3 m/s²
= 12 N
Answer:
- The net force exerted on the chair is 12 N.
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