1. A stationary refrigerator car with mass 2.0 x 104 kg is rammed by a loaded...
1. A stationary refrigerator car with mass 2.0 x 104 kg is rammed by a loaded gondola car with mass 3.0 x104 kg. Before the impact, the gondola car was going 1.0 m/s. If they lock together, what is the new velocity?
2. A force of 30 N accelerates a 2.0 kg object from rest for a distance of 3.0 m along with a level, frictionless surface; the force then changes to 15 N and acts for an additional 2.0 m. a) what is the final kinetic energy of the object? b) how fast is it moving?
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1. A stationary refrigerator car with mass 2.0 x 104
kg is rammed by a loaded...
A force of 30 N accelerates a 2.0 kg object from rest for a distance of...
A force of 30 N accelerates a 2.0 kg object from rest for a distance of 3.0 m along a level, frictionless surface; the force then changes to 15 N and acts for an additional 2.0 m. (a) What is the final kinetic energy of the object? (b) How fast is it moving?
A railroad freight car of mass 1.79 x 104 kg collides with a stationary caboose car....
A railroad freight car of mass 1.79 x 104 kg collides with a stationary caboose car. They couple together, and 32.0% of the initial kinetic energy is transferred to thermal energy, sound, vibrations, and so on. Find the mass of the caboose UnitsT kg Number
A railroad freight car of mass 4.67 × 104 kg collides with a stationary caboose car....
A railroad freight car of mass 4.67 × 104 kg collides with a stationary caboose car. They couple together, and 27.0% of the initial kinetic energy is transferred to thermal energy, sound, vibrations, and so on. Find the mass of the caboose.
HELP ASAP 1500kg car moving at 16 m/s suddenly collides with a stationary car of mass...
HELP ASAP 1500kg car moving at 16 m/s suddenly collides with a
stationary car of mass 1000 kg
Problem3 1500-kg car moving at 16.00 m/s suddenly collides with a stationary car of mass 1000 kg a) What is the total initial momentum? b) If the two vehicles lock together, what is their combined velocity immediately after the collision? c)What is change in momentum? d)What is the impulse? e) What is the average force acting on the stationary car by the...
A block of mass m = 2.0 kg is sitting stationary on a table. A horizontal...
A block of mass m = 2.0 kg is sitting stationary on a table. A horizontal force of magnitude F = 5.0 N is applied to the block, as shown. The coefficient of static friction is µS = 0.7, and the coefficient of kinetic friction is µK = 0.5. To the nearest 0.1 N, what is the magnitude of the force of friction between the block and the table?
a. An airplane has a mass of 3.79 × 104 kg and takes off under the...
a. An airplane has a mass of 3.79 × 104 kg and takes off under the influence of a constant net force of 3.45 × 104 N. What is the net force that acts on the plane's 82.7-kg pilot? Number = ______ N b. A person in a kayak starts paddling, and it accelerates from 0 to 0.527 m/s in a distance of 0.452 m. If the combined mass of the person and the kayak is 64.4 kg, what is...
A 1.0-kg ball with a speed of 3.0 m/s strikes a 2.0-kg stationary ball. The collision...
A 1.0-kg ball with a speed of 3.0 m/s strikes a 2.0-kg stationary ball. The collision is completely inelastic. (a) Calculate the speed of the balls after collision. (b) Calculate the total kinetic energy change during the collision
A railroad car with a mass of 1.95 ✕ 104 kg moving at 2.88 m/s joins...
A railroad car with a mass of 1.95 ✕ 104 kg moving at 2.88 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.56 m/s. (a) What is the speed of the three joined cars after the collision? m/s (b) What is the decrease in kinetic energy during the collision? J
BONUS PROBLEM (15 POINTS) A 1300 kg car moving at 16.5 m/s collides with a stationary...
BONUS PROBLEM (15 POINTS) A 1300 kg car moving at 16.5 m/s collides with a stationary car of mass 1900 kg. If the two vehicles lock together, what is their combined velocity immediately after the collision? Copyright 2010 Pearson Education, Inc.
8) A car is pushing a large truck, such that both accelerate. Which is true? A)...
8) A car is pushing a large truck, such that both accelerate. Which is true? A) The contact force the car exerts on the truck is larger than the contact force the truck exerts on the car. B) The contact force the truck exerts on the car is larger than the contact force the car exerts on the truck. C) The non-zero contact force of the truck on the car is equal to the contact force of the car on...
A railroad freight car of mass 1.79 x 104 kg collides with a stationary caboose car. They couple together, and 32.0% of the initial kinetic energy is transferred to thermal energy, sound, vibrations, and so on. Find the mass of the caboose UnitsT kg Number
HELP ASAP 1500kg car moving at 16 m/s suddenly collides with a
stationary car of mass 1000 kg
Problem3 1500-kg car moving at 16.00 m/s suddenly collides with a stationary car of mass 1000 kg a) What is the total initial momentum? b) If the two vehicles lock together, what is their combined velocity immediately after the collision? c)What is change in momentum? d)What is the impulse? e) What is the average force acting on the stationary car by the...
BONUS PROBLEM (15 POINTS) A 1300 kg car moving at 16.5 m/s collides with a stationary car of mass 1900 kg. If the two vehicles lock together, what is their combined velocity immediately after the collision? Copyright 2010 Pearson Education, Inc.
8) A car is pushing a large truck, such that both accelerate. Which is true? A) The contact force the car exerts on the truck is larger than the contact force the truck exerts on the car. B) The contact force the truck exerts on the car is larger than the contact force the car exerts on the truck. C) The non-zero contact force of the truck on the car is equal to the contact force of the car on...
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