A machine requires an input energy of 2000 J to lift a 50 kg load to a height of 2 m. If the machine takes 5 seconds to lift the load, calculate its efficiency.
W = F × s = 20 N × 3 m = 60 J
Efficiency = (Work done / Energy input) × 100%
Work is defined as the product of the force applied to an object and the displacement of the object in the direction of the force. Mathematically, work (W) is represented by the equation:
A 5 kg object is lifted to a height of 2 m above the ground. Calculate its gravitational potential energy.
A machine requires an input energy of 2000 J to lift a 50 kg load to a height of 2 m. If the machine takes 5 seconds to lift the load, calculate its efficiency.
W = F × s = 20 N × 3 m = 60 J
Efficiency = (Work done / Energy input) × 100% A machine requires an input energy of 2000
Work is defined as the product of the force applied to an object and the displacement of the object in the direction of the force. Mathematically, work (W) is represented by the equation: A machine requires an input energy of 2000
A 5 kg object is lifted to a height of 2 m above the ground. Calculate its gravitational potential energy. A machine requires an input energy of 2000
