Newton's Second Law and Linear Momentum

JEE Main Physics · Newton's Laws of Motion · 21 questions, latest first

• At t=0, a body of mass 100 g starts moving under the influence of a force (5 i+10 j) N. After 2 s its position is (2 x i+5 y j)…20264 April, Shift 2 · Q28
• A particle of mass m falls from rest through a resistive medium having resistive force, F=-k v, where v is the velocity of the…202628 January, Shift 1 · Q28
• A 4 kg mass moves under the influence of a force F=(4 t^3 i-3 t j) N where t is the time in second. If mass starts from origin at…202621 January, Shift 1 · Q28
• A body of mass 2 kg moving with velocity of v_in=3 i+4 j ms^-1 enters into a constant force field of 6 N directed along positive…20258 April, Shift 2 · Q27
• An object with mass 500 g moves along x -axis with speed v=4 √x m / s. The force acting on the object is:20257 April, Shift 2 · Q28
• A balloon and its content having mass M is moving up with an acceleration 'a'. The mass that must be released from the content so…202528 January, Shift 2 · Q32
• A player caught a cricket ball of mass 150 g moving at a speed of 20 m / s. If the catching process is completed in 0.1 s, the…20248 April, Shift 1 · Q34
• A particle moves in x-y plane under the influence of a force F such that its linear momentum is p(t)= i cos (kt)- j sin (kt). If…20245 April, Shift 2 · Q34
• A cricket player catches a ball of mass 120 g moving with 25 m / s speed. If the catching process is completed in 0.1 s then the…20241 February, Shift 2 · Q33
• A body of mass 4 kg experiences two forces F_1=5 i+8 j+7 k and F_2=3 i-4 j-3 k. The acceleration acting on the body is:20241 February, Shift 2 · Q34
• A spherical body of mass 100 g is dropped from a height of 10 m from the ground. After hitting the ground, the body rebounds to a…202430 January, Shift 1 · Q33
• The position vector of a particle related to time t is given by r=(10 t i+15 t^2 j+7 k) m The direction of net force experienced…202315 April, Shift 1 · Q40
• A bullet of 10 g leaves the barrel of gun with a velocity of 600 m / s. If the barrel of gun is 50 cm long and mass of gun is 3…202313 April, Shift 1 · Q35
• A body of mass 500 g moves along x -axis such that it's velocity varies with displacement x according to the relation v=10 √x m /…202311 April, Shift 2 · Q35
• An average force of 125 N is applied on a machine gun firing bullets each of mass 10 g at the speed of 250 m / s to keep it in…202311 April, Shift 1 · Q49
• At any instant the velocity of a particle of mass 500 g is (2 t i+3 t^2 j) ms^-1. If the force acting on the particle at t=1 s is…20238 April, Shift 1 · Q36
• Figures,, and show variation of force with time. The impulse is highest in figure.20231 February, Shift 2 · Q2
• 100 balls each of mass m moving with speed v simultaneously strike a wall normally and reflected back with same speed, in time t…202331 January, Shift 1 · Q5
• The figure represents the momentum time (p-t) curve for a particle moving along an axis under the influence of the force.…202330 January, Shift 1 · Q4
• A force acts for 20 s on a body of mass 20 kg, starting from rest, after which the force ceases and then body describes 50 m in…202329 January, Shift 2 · Q4
• A spherical body of mass 2 kg starting from rest acquires a kinetic energy of 10000 J at the end of 5^th second. The force acted…202324 January, Shift 1 · Q23