Elastic and inelastic collisions in one and two dimensions Mock Test for JEE
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Syllabus context
Part of Work, Energy and Power in JEE Main Physics.
A cricket ball of mass 150g moving with a speed of 126km/h hits at the
middle of the bat, held firmly at its position by the batsman. The ball moves straight back to the bowler after hitting the bat. Assuming that collision between ball and bat is completely elastic and the two remain in constant
for 0.001s, the force that the batsman
had to apply to hold the bat firmly at its place would be:
Q2PhysicsUnit 4: Work, Energy and Power
Assertion
(A) : The value of coefficient
of restitution is independent of the masses and velocities of the colliding bodies but depends on their materials. Reason (R) : Coefficient of restitution is
the ratio of the relative velocity of separation or the relative velocity of approach
Q3PhysicsUnit 4: Work, Energy and Power
Water jet is coming out of a hose pipe of diameter 20cm with speed 20cm/sec
It strike a man inelastically. Find the force exerted by water jet on the person.
Q4PhysicsUnit 4: Work, Energy and Power
A plastic ball falls from a height of 4.9 metre and rebounds several times from
the floor. What is the coefficient of
restitution during the impact with the floor if 1.3 seconds pass from the first impact to the second one?
Q5PhysicsUnit 4: Work, Energy and Power
A ball rebounds after colliding with the
floor, then in case of inelastic collision:
Q6PhysicsUnit 4: Work, Energy and Power
A metal ball of mass 2kg moving with velocity of 36km/h has a head on collision with a stationary ball of mass 3kg. If after the collision the two balls moves together, the loss in kinetic energy due to collision is (in J)
Q7PhysicsUnit 4: Work, Energy and Power
Ball A strikes with velocity u elastically
with identical ball B at rest, inclined at an angle of with line joining the centers of two balls. What will be the speed of
ball B after the collision:
Q8PhysicsUnit 4: Work, Energy and Power
From the given table, which properties of the undetected third particle can we
calculate?
Q9PhysicsUnit 4: Work, Energy and Power
A bomb of mass 3.0 kg explodes in air
into two pieces of masses 2.0kg and 1.0 kg. The smaller mass goes at a speed of 80m/s. The total energy imparted to the two fragments is:
Q10PhysicsUnit 4: Work, Energy and Power
Two bodies collide at the same
temperature. Which of the following must remain conserved?
(i) Velocity
(ii) Momentum
(iii) Kinetic energy
Q11PhysicsUnit 4: Work, Energy and Power
A ball of mass m moving with velocity v collides elastically with another ball of identical mass coming from opposite direction with velocity 2v. Their velocities after collision will be :
Q12PhysicsUnit 4: Work, Energy and Power
A ball is thrown vertically downwards with velocity 2gh from a height h After colliding with the ground it just reaches the starting point. Coefficient of restitution is :
Q13PhysicsUnit 4: Work, Energy and Power
Which of the following statements is
true for collisions-
Q14PhysicsUnit 4: Work, Energy and Power
Two identical balls A and B having velocities of 0.5m/s and −0.3m/s
respectively collide elastically in one
dimension. The velocities of B and A
after the collision respectively will be
Q15PhysicsUnit 4: Work, Energy and Power
Which one of the following statements
does hold good when two balls of
masses m1 and m2 undergo elastic
collision?
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