A 75kg kid is riding a 5kg skateboard at 3m/s. The kid jumps off the front of the moving board and lands on the ground moving at 6m/s. What is the velocity of the skateboard after the kid jumps off?

Q: initial speed of the ball

A:

Q: A truck has a mass of 900 kg. If the velocity of the truck is 30 m/s, what is its momentum? 00…

A: Given data :                  Mass of the truck (m) = 900 kg                 Velocity of the truck…

Q: My sable-colored Siberian husky, Samba, loves to run after huge objects (for instance, tree…

A: According to the Newton's laws of motion , the distance travelled is calculated by using the formula…

Q: Kyle, a 95.0 kg football player, leaps straight up into the air (with no horizontal velocity) to…

A: Given,mass of the football player, M = 95.0 kgmass of the ball, m = 0.430 kgheight above the ground,…

Q: A 180-g billiard ball is shot toward an identical ball at velocity vi = 7.60 m/s. The identical ball…

A: A 180-g billiard ball is shot toward an identical ball at velocity vi = 7.60 m/s. The identical ball…

Q: A hockey puck is hit by a stick and slides off at an initial speed of 0.5 m/s. Assuming that the ice…

A:

Q: A 390 kg cannon sits on a frozen lake. It fires a 5.5 kg cannonball horizontally with a speed of 305…

A:

Q: A force of 38.78 N acts on a mass changing its momentum by 46.66 kg m/s.  What is the time during…

A: According to the Newton’s second law of motion, the force can be defined as the rate of change of…

Q: The rocket engine pushes 90 g/s of gas at a speed of 300 m/s in comparison to the rocket. The…

A:

Q: 3. Harry Potter is doing his usual thing of cruising around looking for the Golden Snitch when a…

A:

Q: Dan is gliding on his skateboard at 3.96 m/s. He suddenly jumps backward off the skateboard, kicking…

A:

Q: A hockey puck is hit on a frozen lake and starts moving with a speed of 14.1 m/s. Five seconds…

A:

Q: 7. You are driving along a straight section of road at 13 m/s when 10 m in front of you a furry…

A:

Q: If a 140 g baseball strikes your head at 33 m/s and stops in 0.0014 s , what is the magnitude of the…

A: Write the given values with the suitable variables. m=140 gu=33 m/st=0.0014 sv=0 m/s Here, m, u, t,…

Q: 0780938042 حمد العزام Ex : Two billiard balls are travelling to the right with speeds (v1 = 0.5 m/s)…

A: According to the principle of conservation of momentum, the total momentum of the system must be…

Q: 7. A billiard ball is shot west at 3.00 m/s. A second, identical billiard ball is shot east at 2.00…

A:

Q: A loaded gun is dropped on a frozen lake. The gun fires, with the bullet going horizontally in one…

A: Given that            the mass of the bullet is (m) = 0.04Kg            The speed of the bullet is…

Q: What is the time during which the force is in contact with the mass?

A:

Q: A 58 g superball traveling at 20 m/s collides with a wall and rebounded at 19 m/s. A high-speed…

A:

Q: A force of 35.34 N acts on a mass changing its momentum by 26.72 kg m/s.  What is the time during…

A: According to new second law of motion, relation between change in momentum, time and force is given…

Q: a 9.2kg block of wood resting on a platform was hit by a 32g of bullet traveling upward with a speed…

A:

Q: A 75kg ice hocket goalie. originally at rest, is hit by a 150g puck moving at 32m/s. The collision…

A: Let the goalie mass m1 and puck mass m2 . Initial speed u1 and u2 of goalie and puck respectively…

Q: A loaded gun is dropped on a frozen lake. The gun fires, with the bullet going horizontally in one…

A: According to the momentum conservation principle, the total momentum of the system must be…

Q: A 3-g bullet is fired horizontally into a 10-kg block of wood suspended by a rop from the ceiling.…

A:

Q: Kyle, a 80.0 kg football player, leaps straight up into the air (with no horizontal velocity) to…

A:

Q: On planet #2, you launch a projectile straight up from the ground at a speed of 77.4 m/s. The…

A:

Q: What is the time during which the force is in contact with the mass?

A: Data provided in the question; Force acting on the mass (F)=10.12 N Change in momentum in the mass…

Q: A force of 33.5 N acts on a mass changing its momentum by 43.13 kg m/s.  What is the time during…

A: From Newton’s second law of motion.

Q: 15-kg object initially at rest is raised to a height of 8 m by a force of 200 N. What is the…

A:

Q: A billiard ball that's moving at 5.00m/s strikes a stationary ball and after collision the first…

A: From conservation of momentum along x-axis, From conservation of momentum along y-axis,

Q: A 10-m-long glider with a mass of 680 kg (including the passengers) is gliding horizontally through…

A: Given,

Q: V A A 60ст, 60cm 30cm 1.25m A sled moves along at a velocity of v = 4.6m/s. A person (block A, mass…

A: Solution: Given: v = speed of sled = 4.6 m/s m1 = mass of block A (person) = 55 kg m2 = mass of sled…

Q: You find yourself stuck in outerspace with nothing but your physics book and spacesuit. You have a…

A:

Q: What is the momentum of a 145 g baseball traveling at 41 m/s.

A:

Q: A particle with mass 7.97 kg has a velocity component of -6.83 m/s on the x-axis. What is the…

A:

Q: A soccer player kicks a ball at a velocity of 10 m/s. It slows down by -1m/s/s due to friction.what…

A:

Q: A 66 kg Man pushes off the 87kg Block on ice and slide away at a speed of 3 m/s. What is the speed…

A: Given data The mass of the man is m = 66 kg. The mass of the block is M = 87 kg. The final velocity…

Q: an iron ball with a mass of 67.5 kg is traveling with an initial velocity of 20.5 m/s. the ball is…

A: Given:-  The iron ball of mass m = 67.5 kg  The initial velocity of the iron ball v= 20.5 m/s. The…

Q: Kyle, a 95.0 kg football player, leaps straight up into the air (with no horizontal velocity) to…

A: Given data: The mass of the player is mp=95.0 kg. The mass of the ball is mb=0.430 kg. The height…

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.