O-LevelPhysicsForces5054/11 · May/June 2014 · Q61 Mark
In which situation is the resultant force on the body equal to zero?
Acar turning a corner at constant speed
Brock falling freely on the Moon
Ctrain going up a straight hill at constant speed in a straight line
Dan aircraft accelerating along a runway in a straight line
✓ Correct answer
C: train going up a straight hill at constant speed in a straight line
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