Homework Answers
Momentum = Mass of the system ×
velocity of the system
A 800 kg car moving east at 31 m/s runs head-on into a 3100 kg truck moving west at 21 m/s. The vehicles stick together...
A 800 kg car moving east at 31 m/s runs head-on into a 3100 kg truck moving west at 21 m/s. The vehicles stick together. Use the concept of the center-of-momentum frame to determine how much kinetic energy
A) If a 1552 kg car, moving at 8 m/s north, hits and sticks to a...
A) If a 1552 kg car, moving at 8 m/s north, hits and sticks to a 1812 kg truck, moving at 6 m/s east, find the magnitude of the final speed. B) If a 1919 kg car, moving at 8 m/s north, hits and sticks to a 3187 kg truck, moving at 4 m/s west, find the direction of the final speed.
A blue car with mass mc = 481 kg is moving east with a speed of...
A blue car with mass mc = 481 kg is moving east with a speed of vc = 23 m/s and collides with a purple truck with mass mt = 1289 kg that is moving south with a speed of vt = 10 m/s . The two collide and lock together after the collision. *What is the magnitude of the initial momentum of the car? *What is the magnitude of the initial momentum of the truck? *What is the magnitude...
A car of mass m 2000.0kg is moving at speed vi25.0 m/s towards East. A truck...
A car of mass m 2000.0kg is moving at speed vi25.0 m/s towards East. A truck of mass m2 6000.0kg is moving at speed v2i-10.0m/s towards North. They collide at an m1- intersection and get entangled (complete inelastic collision). 1. What is the magnitude and direction of the final velocity of the entangled automobiles? 2. How much kinetic energy is lost in the collision. That is, calculate the change in the kinetic energy of the system
6. A 50-kg front seat passenger in a car moving initially with a speed of 25...
6. A 50-kg front seat passenger in a car moving initially with a speed of 25 m/sisbr rest by an air bag in a time of 0.4 s a) What is the impulse acting on the passenger? b) What is the average force acting on the passenger in this process?? 7. A ball traveling with an initial momentum of 5.0 kg.m/s bounces off a wall and comes back in the opposite direction with a momentum of -4.5 kg.m/s a) What...
A 1500-kg car is moving westward with a speed of 20m/s and a 3000-kg truck is...
A 1500-kg car is moving westward with a speed of 20m/s and a 3000-kg truck is traveling east with a speed of 16 m/s. Find the velocity of the center of mass of the system. Let east be the positive x-direction.
A car with a mass of 980 kg is initially traveling east toward an intersection with...
A car with a mass of 980 kg is initially traveling east toward
an intersection with a speed of vc = 20.9 m/s
and a 1500 kg pickup is traveling north toward the same
intersection. The car and truck collide at the intersection and
stick together. After the collision, the wreckage (car and truck)
moves off in a direction of 44.0° above the x-axis.
Determine the initial speed of the truck and the final speed of
the wreckage in meters...
A 950 kg car traveling east collides in an inellastic collision with a 1900 kg truck...
A 950 kg car traveling east collides in an inellastic collision with a 1900 kg truck traveling north. The final magnitude and direction of the vehicles are 16 m/s 66º north of east. What were the initial velocities of the car and truck?
1. a. A truck of mass 2000 kg is moving with a velocity of 20 m/s....
1. a. A truck of mass 2000 kg is moving with a velocity of 20 m/s. If on applying brakes, the truck stops after coming to a distance of 40 m, find the retarding force? b. A car of mass 1000 kg moving with a velocity of 90 km/h collides with a tree and comes to stop in 10 s. What is the change in momentum of the car? What is the force applied by the tree to stop the...
A truck with a mass of 1710 kg and moving with a speed of 14.0 m/s...
A truck with a mass of 1710 kg and moving with a speed of 14.0 m/s rear-ends a 613 kg car stopped at an intersection. The collision is approximately elastic since the car is in neutral, the brakes are off, the metal bumpers line up well and do not get damaged. Find the speed of both vehicles after the collision in meters per second. m/s truck m/s car As shown in the figure below, object m, = 1.50 kg starts...
A 800 kg car moving east at 31 m/s runs head-on into a 3100 kg truck moving west at 21 m/s. The vehicles stick together. Use the concept of the center-of-momentum frame to determine how much kinetic energy
A car of mass m 2000.0kg is moving at speed vi25.0 m/s towards East. A truck of mass m2 6000.0kg is moving at speed v2i-10.0m/s towards North. They collide at an m1- intersection and get entangled (complete inelastic collision). 1. What is the magnitude and direction of the final velocity of the entangled automobiles? 2. How much kinetic energy is lost in the collision. That is, calculate the change in the kinetic energy of the system
6. A 50-kg front seat passenger in a car moving initially with a speed of 25 m/sisbr rest by an air bag in a time of 0.4 s a) What is the impulse acting on the passenger? b) What is the average force acting on the passenger in this process?? 7. A ball traveling with an initial momentum of 5.0 kg.m/s bounces off a wall and comes back in the opposite direction with a momentum of -4.5 kg.m/s a) What...
A car with a mass of 980 kg is initially traveling east toward
an intersection with a speed of vc = 20.9 m/s
and a 1500 kg pickup is traveling north toward the same
intersection. The car and truck collide at the intersection and
stick together. After the collision, the wreckage (car and truck)
moves off in a direction of 44.0° above the x-axis.
Determine the initial speed of the truck and the final speed of
the wreckage in meters...
1. a. A truck of mass 2000 kg is moving with a velocity of 20 m/s. If on applying brakes, the truck stops after coming to a distance of 40 m, find the retarding force? b. A car of mass 1000 kg moving with a velocity of 90 km/h collides with a tree and comes to stop in 10 s. What is the change in momentum of the car? What is the force applied by the tree to stop the...
A truck with a mass of 1710 kg and moving with a speed of 14.0 m/s rear-ends a 613 kg car stopped at an intersection. The collision is approximately elastic since the car is in neutral, the brakes are off, the metal bumpers line up well and do not get damaged. Find the speed of both vehicles after the collision in meters per second. m/s truck m/s car As shown in the figure below, object m, = 1.50 kg starts...
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