PH-79
Resultant force and F = ma
Physics · Secondary 3 · Medium · Resultant force and F = ma
A 2.5 kg block is pulled along a rough horizontal surface by a horizontal force of 14 N. The block accelerates at 2.0 m/s². What is the frictional force on the block?
- 5.0 N
- 7.0 N
- 9.0 N
- 16 N
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