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On a frictionless surface, a block of mass M moving at speed υ collides elastically with another block of same mass M which is initially at rest. After collision the first block moves at an angle θ to its initial direction and has a speed υ/3. The second block’s speed after the collision is:
28
Aug
On a frictionless surface, a block of mass M moving at speed υ collides elastically with another block of same mass M which is initially at rest. After collision the first block moves at an angle θ to its initial direction and has a speed υ/3. The second block’s speed after the collision is: On [...]
A man moving with 5 m/s^−1 observes rain falling vertically at the rate of 10 m/s^−1 . Find the speed and direction of the rain with respect to ground.
28
Aug
A man moving with 5 m/s^−1 observes rain falling vertically at the rate of 10 m/s^−1 . Find the speed and direction of the rain with respect to ground. A man moving with 5ms ^ −1 observes rain falling vertically at the rate of 10ms^ −1 . Find the speed and direction of the rain [...]
A cylindrical tank having cross-sectional area `A = 0.5 m^(2)` is filled with two liquids of density `rho_(1) = 900/ kg /m^-3` and `rho_2 = 600 kg/m^-3`, to a height `h = 60 cm` each as shown in the figure. A small hole having area `a = 5 cm^2` is made in right vertical wall at a height `y = 20 cm` from the bottom. A horizontal force `F` is applied on the tank to keep it in static equilibrium. The tank is lying on a horizontal surface. Neglect mass of the cylindrical tank in comparison to mass of the liquids (`ake `g = 10 ms^(-2)`).
28
Aug
A cylindrical tank having cross-sectional area `A = 0.5 m^(2)` is filled with two liquids of density `rho_(1) = 900/ kg /m^-3` and `rho_2 = 600 kg/m^-3`, to a height `h = 60 cm` each as shown in the figure. A small hole having area `a = 5 cm^2` is made in right vertical wall [...]
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2 and 3 in the limbs in steady state ,
A cylindrical tank having cross-sectional area `A = 0.5 m^(2)` is filled with two liquids of density `rho_(1)=900 kg m^(-3)` and `rho_(2)=600 kgm^(-3)` ,
A vertical U-tube has a liquid up to a height h. If the tube is slowly rotated to an angular speed ω=g/h−−√ find the (i) heights of the liquid column ,
ii pressures at the points 1 ,
Body A of mass 4m moving with speed u collides with another body B of mass 2m, at rest. The collision is head on and elastic in nature. After the collision the fraction of energy lost by the colliding body A is :
28
Aug
Body A of mass 4m moving with speed u collides with another body B of mass 2m, at rest. The collision is head on and elastic in nature. After the collision the fraction of energy lost by the colliding body A is : at rest. The collision is head on and elastic in nature. After [...]
A solid wooden cone has been supported by a string insid(a) Find tension in the string. (b) Find the force applied by the water on the slant surface of the coone. take atmospheric pressure to be p0.e water as shown in the figure. The radius of the circular base of the cone is R and the volume of the cone is v. In equilibrium the base of the cone is at a depth H below the water surface. Density of wood is d(<ρ, density of water).
28
Aug
A solid wooden cone has been supported by a string insid(a) Find tension in the string. (b) Find the force applied by the water on the slant surface of the coone. take atmospheric pressure to be p0.e water as shown in the figure. The radius of the circular base of the cone is R and [...]
Rain is falling vertically and a man is moving with velocity 6 m s^-1. Find the angle at which the man should hold his umbrella to aboved getting wet.
28
Aug
Rain is falling vertically and a man is moving with velocity 6 m s^-1. Find the angle at which the man should hold his umbrella to aboved getting wet. Rain is falling vertically and a man is moving with velocity 6 m s^-1. Find the angle at which the man should hold his umbrella to [...]
A moving block having mass m, collides with another stationary block having mass 4m. The lighter block comes to rest after collision. When the initial velocity of the lighter block is v, then the value of coefficient of restitution (e) will be:
28
Aug
A moving block having mass m, collides with another stationary block having mass 4m. The lighter block comes to rest after collision. When the initial velocity of the lighter block is v, then the value of coefficient of restitution (e) will be: A moving block having mass m collides with another stationary block having mass [...]
A ball moving with velocity 2m/s collides head on with another stationary ball of double the mass. If coefficient of restitution is 0.5, then their velocities (in m/s) after collision will be :
28
Aug
A ball moving with velocity 2m/s collides head on with another stationary ball of double the mass. If coefficient of restitution is 0.5, then their velocities (in m/s) after collision will be : A ball moving with velocity 2m/s collides head on with another stationary ball of double the mass. If coefficient of restitution is [...]
A man wants to swim in a river from A to B and back from B to A always following line AB. The distance between points A and B is S. The velocity of the river current v is constant over the entire width of the river. A The line AB makes an angle α with the direction of current. With what velocity u and at what angle β to the line AB should the man swim to cover distance AB and back in time t?
28
Aug
A man wants to swim in a river from A to B and back from B to A always following line AB. The distance between points A and B is S. The velocity of the river current v is constant over the entire width of the river. A The line AB makes an angle α [...]
A vertical U-tube has a liquid up to a height h. If the tube is slowly rotated to an angular speed ω=g/h−−√ find the (i) heights of the liquid column, ii pressures at the points 1,2 and 3 in the limbs in steady state.
28
Aug
A vertical U-tube has a liquid up to a height h. If the tube is slowly rotated to an angular speed ω=g/h−−√ find the (i) heights of the liquid column, ii pressures at the points 1,2 and 3 in the limbs in steady state. 2 and 3 in the limbs in steady state A vertical [...]