Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Laws of Motion question

2000 · Q149
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Physics
  4. /Laws of Motion
  5. /2000 · Q149

Laws of Motion question

2000 · Q149

NEETPhysicsLaws of MotionMCQ+4 / −1
A body of mass 3 kg hits a wall at an angle of 60o and returns at the same angle. The impact time was 0.2 sec. The force exerted on the wall

AIPMT 2000 Physics - Laws of Motion Question 17 English
  1. A
    1503{\sqrt 3 }3​ N
  2. B
    503{\sqrt 3 }3​ N
  3. C
    100 N
  4. D
    753{\sqrt 3 }3​ N.
View written solutionFree

Correct answer: A

AIPMT 2000 Physics - Laws of Motion Question 17 English Explanation


Change in momentum = 2 × 3 × 10 × sin60°

= 60×3260 \times {{\sqrt 3 } \over 2}60×23​​

Force = Change in momentum/Impact time

=3030.2=1503N = {{30\sqrt 3 } \over {0.2}} = 150\sqrt 3 N=0.2303​​=1503​N

PreviousNext

More from Laws of Motion

  • Two masses as shown in the figure are suspended from a massless pulley. The acceleration of the system when masses are left free is Includes diagram2000 · MCQ
  • There are two inclined surfaces of equal length (L) and same angle of inclination 45∘ with the horizontal. One of them is rough and the other is perfectly smooth. A given body takes 2 times as much time to slide down on rough…2025 · MCQ
  • A horizontal force 10 N is applied to a block A as shown in figure. The mass of blocks A and B are 2 kg and 3 kg respectively. The blocks slide over a frictionless surface. The force exerted by… Includes diagram2024 · MCQ
  • A particle moving with uniform speed in a circular path maintains:2024 · MCQ
  • A box of mass 5 kg is pulled by a cord, up along a frictionless plane inclined at 30∘ with the horizontal. The tension in the cord is 30 N. The acceleration of the box is (Take g=10 m s−2…2024 · MCQ
  • A block of mass 2 kg is placed on inclined rough surface AC (as shown in figure) of coefficient of friction μ. If g = 10 m s−2, the net force (in N) on the block will be: Includes diagram2023 · MCQ
  • A football player is moving southward and suddenly turns eastward with the same speed to avoid an opponent. The force that acts on the player while turning is :2023 · MCQ
  • Calculate the maximum acceleration of a moving car so that a body lying on the floor of the car remains stationary. The coefficient of static friction between the body and the floor is 0.15 $$\left(g=10 \mathrm{~m}…2023 · MCQ