A ball is dropped from a height h above a massive platform that is moving upward with a constant speed u. If the ball collides with the platform elastically, find height above its initial position the ball will hound. Acceleration of free fall is g. 2u Jumezgh

Q: A bullet of mass m is fired with an initial velocity of vo into a block of mass M that is hanging…

A: Mass of the bullet, m mass of the block,  M initial speed of the bullet, vo

Q: 20. A block with mass m, is released from rest on a frictionless track at a distance h, above the…

A: Given: the collision between the m1 and m2 is elastic collision. x is range of the projectile motion…

Q: A 3.8 kg wooden block initially at rest is struck by a 8 g bullet that enters at 654 m/s and 34° and…

A:

Q: A car moving with an initial speed v collides with a second stationary car that is 54.9 percent as…

A: The total initial and final momentum of two cars are equal.

Q: A 0.130-kg baseball hits a wall head-on with a forward speed of 34.0 m/s. It rebounds with a speed…

A:

Q: A ball of mass m is shot straight up into the air with an initial speed vi.   (a) What is the…

A:

Q: A 1000 kg car is going at 60 m/s a 1.3 g bug in the air hit the windshield. The collision is…

A:

Q: A small ball of mass m, is above a larger ball of mass M, and the two are dropped simultaneously…

A:

Q: A bullet is fired horizontally into an initially stationary block of wood suspended by a string and…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A 2 kg block has a velocity of 2 m/s at point A when θ=0º, neglect friction and block size and find:…

A:

Q: Ball A with a mass of 2 kg hanging motionless It is launched to the stationary block with a mass of…

A:

Q: A toy train engine of mass ME = 6 kg sits on the upper left part of a track, as shown in the…

A: In all collision momentum conserved so Momentum before collision= momentum after collision

Q: Each croquet ball in a set has a mass of 0.50 kg. The green ball, traveling at 12.0 m/s, strikes the…

A:

Q: During an Inelastic Collision (without the presence of any external forces), Kinetic Energy is…

A: The kinetic energy during an inelastic collision is not conserved due to internal friction and other…

Q: A fireworks shell P is launched upward from point A and explodes at its apex at an altitude of 275…

A: Given.the firework shell P is explodes at its apex at an altitude of 275 mit reaches to height, y =…

Q: Problem 10.51 You have been asked to design a "ballistic spring system" to measure the speed of…

A:

Q: A bullet with mass m, is fired with a velocity v to a hanging target made of wood with mass mw and…

A: This question is based on the conservation of linear momentum.

Q: A block of mass M at rest on a horizontal frictionless table is attached to a rigid support by a…

A:

Q: An object of mass m = 3.0 kg is released from rest at the top of the incline plane below. What is…

A:

Q: A 51 kg boy on roller skates moves with a speed of 3 m/s. He runs into a 42 kg girl on skates.…

A: solution is given as

Q: A bullet is fired horizontally into an initially stationary block of wood suspended by a string and…

A: mass of bullet = m= 0.0065 kg initial velocity of bullet = Vbi= ? mass of block = M=0.98 kg maximum…

Q: A ballistic pendulum can be used to measure the speed of a bullet from a gun. A ballistic pendulum…

A: in this question we discuss conservation  law of kinetic  energy  and momentum.

Q: A 4kg ball and 3kg ball move on a smooth plane along a straight path with speeds equivalent to 6m/s…

A:

Q: A 49 kg boy on roller skates moves with a speed of 4 m/s. He runs into a 41 kg girl on skates.…

A: Mass of  a boy mb = 49 kg speed of a boy in roller skates v = 4 m/s mass of girl mg = 41 kg

Q: A ball is hanging from a cord of negligible weight. A secondary ball is measured 3m above the…

A: Data Given ,  Height of the secondary ball ( h ) = 3 m from the hanging ball  Released from rest ,…

Q: A 4kg ball and 3 kg ball move on a smooth horizontal plane with speeds of 6m/s to the right and 8m/s…

A: Given data The mass of the first ball is m1 = 4 kg The mass of the second ball is m2 = 3 kg The…

Q: At a traffic signal light, a large truck of mass 2834.00 kg collides with a small car of mass 833 kg…

A: Let the initial velocity of the tuck be u1, the mass of the truck be m1, the velocity of the car…

Q: Question 6-9: Longer Problems. 6) A clay of mass m = 8.00 gram hits a block of mass M = 240 gram…

A: Initial Velocity of clay u= 124 m/s

Q: In the game of pool, the cue ball and 8-ball both have a mass of 0.5kg, and are on a frictionless…

A: Solution: Given that mC =m8 = 0.5 kg V = 5 m/s

Q: 8. When the mass reaches point x = +A, its kinetic velocity is? * a. Maximum and positive O b.…

A:

Q: A 60.0-kg person running at an initial speed of 4.00 m/s jumps onto a 120-kg cart initially at rest…

A: Since the question has multiple parts so we are supposed to answer the first three.  Given:

Q: What is the velocity of each block after they move apart and when the energy stored In the spring…

A: Using conservation of momentum,

Q: A ball is hanging from a cord of negligible weight. A secondary ball with the same weight as the…

A:

Q: An 20 kg ice boat is coasting on a frozen lake with a speed of 4 m/s. Friction between the ice and…

A: Given: The mass of the boat is 20 kg. The inial velocity of the boat is 4 m/s in the horizontal…

Q: Sammy with a mass of 20 kg and his mother the mass of 40 kg are at rest 10 m apart. The father of…

A:

Q: A bullet is fired horizontally into an initially stationary block of wood suspended by a string and…

A:

Q: A ball of mass 0.5 kilogram, initially at rest, is kicked directly toward a fence from a point 32…

A: Given data *The mass of the ball is m = 0.5 kg *The distance is s = 32 m *The velocity of the ball…

Q: A 10 g rifle bullet is fired onto a 2 kg block of wood hanging at rest from a string attached to the…

A:

Q: A 15 g bullet is shot vertically into an 2.10 kg block and does not exit. The block lifts upward 8.0…

A:

Q: 200 m/s >10 gr www 5 kg 2 cm Stagnant on a frictionless horizontal surface a 5 kg block with a…

A: Given The mass of the bullet is mb=10 g=10×10-3 kg. The mass of the block is mB=5 kg. The spring…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.