Newton's laws, friction, free-body diagrams.
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Q1 · Laws of Motion · MEDIUM
A body of mass 5 kg is acted upon by a force of 20 N. What is its acceleration?
Q2 · Laws of Motion · HARD
A block of mass 10 kg is placed on a horizontal surface. The coefficient of friction between the block and surface is 0.5. What minimum force is required to move the block? (Take g = 10 m/s²)
Q3 · Laws of Motion · EASY
According to Newton's first law of motion, a body continues to be in its state of rest or uniform motion unless: