Question 1 :
If a particle of $1Kg$ at mars is pushed through a distance of $5m$. Calculate the total work done. (given $\mu_{m}=0.3$ and $g_{m}=5m/s^2$)
Question 2 :
When a force of 1 N causes a displacement of 1 m, in its own direction, then work done is:<br/>
Question 3 :
A particle of mass $1kg$ starts from rest under a time dependent force $F = 1+2t$. The work done by the force in time interval $t =0$ to $ t= 2s$ is 
Question 4 :
A glass ball is dropped from height 10 m. If there is 20% loss of energy due to impact, then after one impact, the ball will be upto
Question 6 :
<div>Fill in the blanks:</div>One kilowatt is equal to ________ horse power.
Question 7 :
A force of $( 10 \mathrm { i } - 3 \hat { \mathrm { j } } + 6 \hat { \mathrm { k } } ) \mathrm { N }$ acts on a body of 5$\mathrm { kg }$ and displaces it from A $( 6 \hat { i } + 5 \hat { j } - 3 \hat { k } ) m$ to $B ( 10 \hat { i } - 2 \hat { j } + 7 \hat { k } ) m$ . The work done is<br><br>
Question 8 :
Work is negative when the angle between the force and displacement is
Question 10 :
A boy walks 100 m on a levelled road carrying a load of 5kg on his back. What is the work done by the boy against the gravitational force? (${g = 10 m/s^2}$ )
Question 12 :
The work done in lifting1 kg mass to a height of 9.8 m is about
Question 13 :
1 kilowatt-hour is the amount of .... by 1000 watt electric appliance when it operates for one hour.
Question 14 :
Under the action of a constant force, a particle is experiencing a constant acceleration. The power is?
Question 15 :
A force $\displaystyle \left( 3\hat { i } +4\hat { j } \right) $ newton acts on a body and displaced it by $\displaystyle \left( 3\hat { i } +4\hat { j } \right) $ metre. The work done by the force is : <br>
Question 16 :
A motor of 100 H.P. moves a load with a uniform speed of 72 km/hr. The forward thrust applied by the engine on the car is <br>
Question 17 :
A force of 20N acts on a body and the body moves through 1m at an angle of $45^0$ to the direction of the force.The work done by the force is_____
Question 18 :
Which of the following can be used to express energy? Symbols have their usual meanings for the units of physical quantities.<br/>(i) Wh   (ii) VC    (iii) VAs$^2$  (iv)  A$^2\Omega$s<br/>
Question 19 :
A ball is thrown vertically up-wards from the ground. Regarding the work done by air resistance, which of the following is correct?
Question 20 :
An object of mass 10 kg is at a point A on a table. It is moved to a point B by a distance 5 m. If the line joining A and B is horizontal, then what is the work done on the object by gravitational force ?