Part 1
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 [...]
Tags:
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 [...]
A point moves along an arc of a circle of radius R. Its velocity depends on the distance covered s as v=s√, where a is a constant. Find the angle α between the vector of the total acceleration and the vector of velocity as a function of s.
22
Oct
A point moves along an arc of a circle of radius R. Its velocity depends on the distance covered s as v=s√, where a is a constant. Find the angle α between the vector of the total acceleration and the vector of velocity as a function of s. A point moves along an arc of [...]
A particle moves in a circle of radius 30cm. Its linear speed is given by v=2t, where t in second and v in m/s. Find out its radial and tangential acceleration at t=3s.
22
Oct
A particle moves in a circle of radius 30cm. Its linear speed is given by v=2t, where t in second and v in m/s. Find out its radial and tangential acceleration at t=3s. A particle moves in a circle of radius 30cm. Its linear speed is given by v=2t where t in second and v [...]
A car is moving on a circular road of radius 100m. At some instant its speed is 20m/s and is increasing at the rate of 3m/s^2. The magnitude of its acceleration is
22
Oct
A car is moving on a circular road of radius 100m. At some instant its speed is 20m/s and is increasing at the rate of 3m/s^2. The magnitude of its acceleration is A car is moving on a circular road of radius 100m. At some instant its speed is 20m/s and is increasing at the [...]