1. Two sticky spheres of a mass 100 g each collide in vertical plane with velocities...
1. Two sticky spheres of a mass 100 g each collide in vertical plane with velocities (3i - 1k) m/s and (2i + 5k) m/s respectively. After the collision the spheres continue to move together in the field of gravity and hit the ground in 5 seconds after the collision. Find altitude, at which the collision occurred and horizontal distance traveled by the spheres after the collision.
2. A 60 kg swimmer is floating in a pool holding grip of a light beach ball of a diameter 30 cm. Find density of the swimmer’s body if 90% of it and a half of the ball are submerged.
3. A block of a mass 50 g is connected to two springs. The force constant of one spring is three times greater than that of the other spring. The block oscillates over a frictionless surface with period of 0.2 s. Find spring constants of both springs.
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1. Two sticky spheres of a mass 100 g each collide in vertical
plane with velocities...
Two masses are traveling toward each other with velocities of +7.0 m/s (mass 1) and -4.0...
Two masses are traveling toward each other with velocities of +7.0 m/s (mass 1) and -4.0 m/s (mass 2). They collide and experience a perfectly elastic head-on collision. If mass 1 has half the mass of mass 2, determine the velocities (magnitude and direction) of the two masses after the collision.
1. Collision. Two identical billiard balls collide head-on to each other as shown. The incident velocities...
1. Collision. Two identical billiard balls collide head-on to each other as shown. The incident velocities vi and v2 (before collision) are 3 m/s and 7 m/s (pay attention to their directions). a). What is the value of the velocity of the center-of-mass of the system? b). In the center of mass reference frame, the velocities of two objects are denoted as v' and v2'. Please find the values of v' and v2 e). In the center of mass reference...
A long, uniform rod of mass 20.00 kg is pivoted at its top end. It is...
A long, uniform rod of mass 20.00 kg is pivoted at its top end. It is lifted a small angle and let go. When it reaches the very bottom of its swing, it is moving with angular speed ?o , and it has collision with a block of mass 3.000 kg that was originally at rest on a frictionless surface. After the collision the rod is seen to continue spinning in the same direction at 17.66 rad/s. As a result...
1. Two asteroids collide head-on and stick together. Before the collision, asteroid A (mass 1,000 kg)...
1. Two asteroids collide head-on and stick together. Before the
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B (mass 2,000 kg) moved at 80 m/s in the opposite direction. Use
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1. Collision. Two identical billiard balls collide head-on to each other as shown. The incident velocities vi and v2 (before collision) are 3 m/s and 7 m/s (pay attention to their directions). a). What is the value of the velocity of the center-of-mass of the system? b). In the center of mass reference frame, the velocities of two objects are denoted as v' and v2'. Please find the values of v' and v2 e). In the center of mass reference...
1. Two asteroids collide head-on and stick together. Before the
collision, asteroid A (mass 1,000 kg) moved at 100 m/s and asteroid
B (mass 2,000 kg) moved at 80 m/s in the opposite direction. Use
momentum conservation (make a complete Momentum chart) to find the
velocity of the asteroids after the collision.
2. Two asteroids identical to those in (1) collide at right
angles and stick together. "Collide at right angles" means that
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