A tractor pulls a plough 2km across a field using a constant force of 8N, what is the work done by the tractor?
Work done= F x d; where d= distance object has been moved through in same direction of force and F= resultant force. F=8 N.d=2 x 1000 m.WD = 2000 x 8 = 16000 J
LB
Related Physics GCSE answers
All answers ▸If Newton's third law is correct, why are walls not indestructible? In applying a force to a wall, if it breaks surely it is not giving an equal and opposite force.
An electric Iron rated at 2600 W contains a steel plate, heated to a working temperature of 215°C. Room temp=18°C. Deduce whether the plate could reach its working temperature in less than 1 minute. Mass (steel plate)=890g & C (steel)=450J/kg/K
explain how a parachutist reaches a constant speed using the concept of terminal velocity.
Describe how a crumple zone on a car reduces injury to the driver in a crash.