Advertisements
Advertisements
प्रश्न
A bus and a car have the same K.E. which of the two should be moving faster? Explain.
एका वाक्यात उत्तर
Advertisements
उत्तर
The car should be moving faster because the mass of the car is less than that of the bus.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Draw a simplified diagram of a lemon crusher, indicting of load and effort
A satellite revolves around the earth in a circular orbit. What is the work done by the force of gravity? Give reason.
How is kilowatt hour related to joule?
Name the quality which is measured in kWh.
A boy weighing 350 N climbs up 30 steps, each 20 cm high in 1 minute, Calculate:
- the work done and
- power spent.
Work is a scalar quantity because it is a measure of transfer of energy without indicating any direction
Define energy of a body.
Give the units of couple.
Derive a relation between the S.I. and C.G.S. unit of force.
A man raises a box of mass 50 kg to a height of 2 m in 20 s, while another man raises the same box to the same height in 50 s. Compare:
- the work done, and
- the power developed by them. Take g = 10 N kg-1
