Calculate the resultant force needed to give a kg car an acceleration of m/s².
Salam Academy Original Practice · Proposed mark scheme
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12 questions
A motorbike has a forward driving force of N and resistive forces of N. State the resultant force on it.
Salam Academy Original Practice · Proposed mark scheme
A box slides across ice at a constant velocity. The resultant force on it is
Salam Academy Original Practice · Proposed mark scheme
A resultant force of N gives an object an acceleration of m/s². Calculate its mass.
Salam Academy Original Practice · Proposed mark scheme
A skydiver of weight N is falling at terminal velocity. State the size of the air resistance on her, in N.
Salam Academy Original Practice · Proposed mark scheme
A ball on a string is whirled in a horizontal circle at constant speed. The resultant force on the ball acts
Salam Academy Original Practice · Proposed mark scheme
Friction between a moving object and a surface mostly transfers energy to
Salam Academy Original Practice · Proposed mark scheme
Newton's first law says that an object with no resultant force on it
Salam Academy Original Practice · Proposed mark scheme
The motorbike (driving force N, resistive forces N) has a mass of kg. Calculate its acceleration.
Salam Academy Original Practice · Proposed mark scheme
A kg object falls with an air resistance of N acting on it. Take N/kg. Calculate its acceleration.
Salam Academy Original Practice · Proposed mark scheme
A braking force of N acts on a kg car. Calculate the size of its deceleration.
Salam Academy Original Practice · Proposed mark scheme
A kg car slows uniformly from m/s to rest in s. Calculate the size of the braking force.
Salam Academy Original Practice · Proposed mark scheme