Cengage NEET by C.P Singh
A bullet of mass m moving with velocity v strikes a block of mass M at rest and gets embedded into it. The kinetic energy of the composite block will be
22
Oct
A bullet of mass m moving with velocity v strikes a block of mass M at rest and gets embedded into it. The kinetic energy of the composite block will be A bullet of mass m moving with velocity v strikes a block of mass M at rest and gets embedded into it. The kinetic [...]
A ball A of mass 1kg , moving with a speed of 12m/s , collides obliquely and elasticity with another ball B which was initially at rest. Ball A then moves off at the right angle to its initial direction with a speed of 5m/s. The momentum of ball B after the collision is
22
Oct
A ball A of mass 1kg , moving with a speed of 12m/s , collides obliquely and elasticity with another ball B which was initially at rest. Ball A then moves off at the right angle to its initial direction with a speed of 5m/s. The momentum of ball B after the collision is A [...]
A ball , moving with a speed of 10 3–√m/s , strikes an identical stationary ball such that after the collision , the direction of each ball makes an angle of 30^∘ with the original line of motion. The speeds of two balls after the collision are , respectively.
22
Oct
A ball , moving with a speed of 10 3–√m/s , strikes an identical stationary ball such that after the collision , the direction of each ball makes an angle of 30^∘ with the original line of motion. The speeds of two balls after the collision are , respectively. A ball moving with a speed [...]
A ball of mass 0.2 kg rests on a vertical post of height 5 m. A bullet of mass 0.01 kg, travelling with a velocity V m/s in a horizontal direction, hits the centre of the ball. After the collision, the ball and bullet travel independently. The ball hits the ground at a distance of 20 m and the bullet at a distance of 100 m from the foot of the post. The initial velocity V of the bullet is
22
Oct
A ball of mass 0.2 kg rests on a vertical post of height 5 m. A bullet of mass 0.01 kg, travelling with a velocity V m/s in a horizontal direction, hits the centre of the ball. After the collision, the ball and bullet travel independently. The ball hits the ground at a distance of [...]
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A ball of mass 0.2 kg rests on a vertical post of height 5 m. A bullet of mass 0.01 kg ,
hits the centre of the ball. After the collision ,
the ball and bullet travel independently. The ball hits the ground at a distance of 20 m and the bullet at a distance of 100 m from the foot of the post. The initial velocity V of the bullet is ,
travelling with a velocity V m/s in a horizontal direction ,
The ball A is reached and it makes head on collision with B. The masses of A and B are same 1. After collision , A comes to rest and B moves with velocity of A just before collision 2. The maximum height attained by ball B is L/2 3. The maximum angle made by string attached to B is 60^∘ 4. All options are correct
22
Oct
The ball A is reached and it makes head on collision with B. The masses of A and B are same 1. After collision , A comes to rest and B moves with velocity of A just before collision 2. The maximum height attained by ball B is L/2 3. The maximum angle made by [...]
A point mass of 1kg collides elastically with a stationary point mass of 5 kg. After their collision, the 1kg mass reverses its direction and moves with a speed of 2ms^−1. Which of the following statements (s) is (are) correct for the system of these two masses?
22
Oct
A point mass of 1kg collides elastically with a stationary point mass of 5 kg. After their collision, the 1kg mass reverses its direction and moves with a speed of 2ms^−1. Which of the following statements (s) is (are) correct for the system of these two masses? A point mass of 1kg collides elastically with [...]
In a smooth circular tube of radius R , a particle of mass m moving with speed V0 hits another particle of mass 3m at rest as shown. The time after which the next collision takes place (assume elastic collision)
22
Oct
In a smooth circular tube of radius R , a particle of mass m moving with speed V0 hits another particle of mass 3m at rest as shown. The time after which the next collision takes place (assume elastic collision) a particle of mass m moving with speed V0 hits another particle of mass 3m [...]
A particle of mass m moving with horizontal speed 6m/s as shown in the figure. If m
22
Oct
A particle of mass m moving with horizontal speed 6m/s as shown in the figure. If m A particle of mass m moving with horizontal speed 6m/s as shown in the figure. If m October 22, 2020 Category: Cengage NEET by C.P Singh , Chapter 10 - COM, Momentum and Collision , Part 1 ,
A body of mass M moves with velocity v and collides elasticity with another body of mass m(M>>m) at rest , then the velocity of the body of mass m is
22
Oct
A body of mass M moves with velocity v and collides elasticity with another body of mass m(M>>m) at rest , then the velocity of the body of mass m is A body of mass M moves with velocity v and collides elasticity with another body of mass m(M>>m) at rest then the velocity of [...]
A body moves on a horizontal circular road of radius r, with a tangential acceleration at. The coefficient of friction between the body and the road surface Is μ. It begins to slip when its speed is v. (i) v^2=μrg (ii) μg=(v^4/r^2)+at) (iii) μ^2g^2=(v^4/r^2+a^2t (iv) The force of friction makes an angle tan^−1(v^2/atr) with the direction of motion at the point of slipping.
22
Oct
A body moves on a horizontal circular road of radius r, with a tangential acceleration at. The coefficient of friction between the body and the road surface Is μ. It begins to slip when its speed is v. (i) v^2=μrg (ii) μg=(v^4/r^2)+at) (iii) μ^2g^2=(v^4/r^2+a^2t (iv) The force of friction makes an angle tan^−1(v^2/atr) with the [...]