A Bus and a Car Have the Same K.E. Which of the Two Should Be Moving Faster? Explain.

A bus and a car have the same K.E. which of the two should be moving faster? Explain.

One Line Answer

The car should be moving faster because the mass of the car is less than that of the bus.

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Chapter 1: Force, Work, Energy and Power - Exercise 1.5 i [Page 53]

Chapter 1 Force, Work, Energy and Power
Exercise 1.5 i | Q 15 | Page 53

When a body is placed on a table top, it exerts a force equal to its weight downwards on the table top but does not move or fall

1) Name the force exerted by the table top

2) What is the direction of the force?

A man spends 7.4 KJ energy in displacing a body by 74 m in the direction in which he applies force in 2.5 s. Calculate the force applied.

Name the quality which is measured in kW.

Name two places in india where electricity is generated from nuclear power plants.

What is the work done when the force on the object and the displacement of the object are perpendicular to each other?

Work done by a force is equal to the product of ....... and ....

State the condition when the work done by the force is positive

State the condition when the work done by the force is negative.

State two conditions for work to be done.

State the S.I. and C.G.S. units of energy. How are they related?