A particle is acted upon by a force whose component's variations with time are shown in diagrams. Then the magnitude of change in momentum of the particle in $0.1\,\,sec$ will be :-
$2\,\,kg\, m\,/\,sec$
$10\,\,kg\, m\,/\,sec$
$12\,\,kg\, m\,/\,sec$
$5\sqrt 2\,\,kg\, m\,/\,sec$
In a carom-board game the striker and the coins are identical and of mass $m$ . In a particular hit the coin is hit when it is placed close to the edge of the board as shown in figure such that the coin travels parallel to the edge. If the striker is moving with speed $v$ before the strike, then the net impulse on the striker during collision if it moves perpendicular to the edge after collision, is (assume all collisions to be perfectly elastic)
An object with a mass $10 \,kg$ moves at a constant velocity of $10 \,m/sec$. A constant force then acts for $4\, second$ on the object and gives it a speed of $2\, m/sec$ in opposite direction., the impulse acting on the object is ......... $newton \times \sec $
A rigid ball of mass $m$ strikes a rigid wall at $60^o $ and gets reflected without loss of speed as shown in the figure. The value of impulse imparted by the wall on the ball will be
If a force of $250\, N$ act on body, the momentum acquired is $125\, kg-m/s$. What is the period for which force acts on the body ......... $\sec$
A batsman hits back a ball of mass $0.4 \; kg$ straight in the direction of the bowler without changing its initial speed of $15 \; ms ^{-1}$. The impulse imparted to the ball is $\dots \; Ns$