An empty train car of mass 2.0 x 10^4 kg coasts along at 10 m/s. A...
An empty train car of mass 2.0 x 10^4 kg coasts along at 10 m/s. A 300-kg boulder is suddenly dropped vertically into the car. Find the speed of the car immediately after the boulder is dropped in (also show your work)
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An empty train car of mass 2.0 x 10^4 kg coasts along at 10 m/s.
A...
An empty coal car (mass mc=22,000.kg) of a train coasts along at 8.0ms. An elephant, me=2500.kg...
An empty coal car (mass mc=22,000.kg) of a train coasts along at 8.0ms. An elephant, me=2500.kg falls from a bridge and drops vertically into the car. Determine the speed of the car immediately after the elephant falls. Hint: mc⋅vc=(mc+me)⋅vc,f→ vc,f=mc⋅vCmc+me A) 8.7ms; B) 7.2ms; C) 18.0ms; D) 1,456.7ms;
An open train car, with a mass of 2030 kg, coasts along a horizontal track at...
An open train car, with a mass of 2030 kg, coasts along a horizontal track at the speed 2.33 m/s. The car passes under a loading chute and, as it does so, gravel falls vertically into it for 3.41 s at the rate of 425 kg/s. What is the car\'s speed after the loading is completed? Ignore rolling friction (as unrealistic as that may be).
An empty freight train car of mass 10000 kg is rolling along a level of track...
An empty freight train car of mass 10000 kg is rolling along a level of track at 2.00 m/ s . It collides with a loaded car of weight 1.96 * 10^5 n which is at rest . What is the speed of the train after the collision
1. A car of mass 975 kg coasts on a level road, starting with an initial...
1. A car of mass 975 kg coasts on a level road, starting with an initial speed of 15.0 m/s and coming to rest 15.0 s later. Find the frictional force acting on the car.
A 2.0-kg mass moving at 5.0 m/s suddenly collides head-on with a 3.0-kg mass at rest....
A 2.0-kg mass moving at 5.0 m/s suddenly collides head-on with a 3.0-kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses just after the collision? 2.5 m/s 10 m/s 2.0 m/s 0 m/s, since the collision is inelastic
A 1190-kg flatbed train car rolls along frictionless tracks at a speed of 0.132 m/s. A...
A 1190-kg flatbed train car rolls along frictionless tracks at a
speed of 0.132 m/s. A 62.2-kg man stands on the flatbed and, in
order to stop the car, runs to the edge and jumps off.
0.132 m/s If the car's final velocity is zero, what is the final speed v of the man? m/s
A car of mass 1200.0 kg and a truck of mass 9000.0 kg collide along a...
A car of mass 1200.0 kg and a truck of mass 9000.0 kg collide along a straight road. The initial speed of the car is 25.0 m/s and the initial speed of the truck is 20.0 m/s. If the speed of the car after the collision is 18.0 m/s, what is the speed of the truck after the collision? can you explain this as you solve.
bicycle of mass m with initial velocity 10 m/s coasts to a net height of 3.5...
bicycle of mass m with initial velocity 10 m/s coasts to a net height of 3.5 m. 1. What is the velocity at the top, neglecting friction? 2. Write the equation of conservation of total energy if friction is not neglected 3. Find the final speed at the top if the mass of bicycle = 60 Kg and the work done by friction force in absolute value is 600 J.
A 1500 kg car traveling at 19 m/s suddenly runs out of gas while approaching the...
A 1500 kg car traveling at 19 m/s suddenly runs out of gas while
approaching the valley shown in the figure(Figure 1). The alert
driver immediately puts the car in neutral so that it will roll.
What will be the car’s speed as it coasts into the gas station on
the other side of the valley? Express your answer to two
significant figures and include the appropriate units.
Gas station 15 m 10 m
Required information In the railroad freight yard, an empty freight car of mass m rolls along...
Required information In the railroad freight yard, an empty freight car of mass m rolls along a straight level track at 1.20 m/s and collides with an initially stationary, fully loaded boxcar of mass 5.70m. The two cars couple together on collision. What is the speed of the two cars after the collision? m/s
A 2.0-kg mass moving at 5.0 m/s suddenly collides head-on with a 3.0-kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses just after the collision? 2.5 m/s 10 m/s 2.0 m/s 0 m/s, since the collision is inelastic
A 1190-kg flatbed train car rolls along frictionless tracks at a
speed of 0.132 m/s. A 62.2-kg man stands on the flatbed and, in
order to stop the car, runs to the edge and jumps off.
0.132 m/s If the car's final velocity is zero, what is the final speed v of the man? m/s
A 1500 kg car traveling at 19 m/s suddenly runs out of gas while
approaching the valley shown in the figure(Figure 1). The alert
driver immediately puts the car in neutral so that it will roll.
What will be the car’s speed as it coasts into the gas station on
the other side of the valley? Express your answer to two
significant figures and include the appropriate units.
Gas station 15 m 10 m
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