Question

75 n of force is applied to a 25 kg block accelerating at 3 m/s\\(^2\\). a second 15 kg object is also accelerating at 3 m/s\\(^2\\). how does the force applied to the two blocks compare?

75 n = 25 kg (3 \frac{\text{m}}{\text{s}^2}) \t ? n = 15 kg (3 \frac{\text{m}}{\text{s}^2})

• the force on the 15 kg block is larger.
• the force on the 15 kg block is the same as the 25 kg block.
• the force on the 15 kg block is smaller.

Explanation:

Calculate the force on the second block

$$ F_2 = 15\text{ kg} \times 3\text{ m/s}^2 = 45\text{ N} $$

Compare the forces

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Answer:

• The force on the 15 kg block is larger.
• The force on the 15 kg block is the same as the 25 kg block.
• The force on the 15 kg block is smaller. (Correct answer)