PH-220
Friction and air resistance
Physics · Secondary 3 · Medium · Friction and air resistance
A 3.0 kg block is pulled along a horizontal surface by a horizontal force of 25 N. The frictional force opposing the motion is 10 N. What is the acceleration of the block?
- 5.0 m/s²
- 1.5 m/s²
- 8.3 m/s²
- 35 m/s²
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