subject
Physics, 14.10.2019 22:50 hstover496

For a movie stunt, an empty truck with a mass of 2000 kg goes 10 m/s and runs into a stopped car of mass 1000 kg. the truck then keeps moving and pushes the car along with it. if there are no other forces acting on this system, which best describes the results of the collision?

a. the collision is perfectly elastic.

b. kinetic energy stays the same.

c. the momentum after the collision is greater than the momentum before the collision.

d. the speed of the combined vehicles is less than the initial speed of the truck.

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 04:50
Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?
Answers: 1
question
Physics, 22.06.2019 16:00
The electric field direction is defined by the direction of the force felt by (select one of the following answers): 1. a negative charge. 2. a positive charge. 3. both positive and negative charges.
Answers: 2
question
Physics, 22.06.2019 16:00
In which of the following is positive work done by a person on a suitcase
Answers: 1
question
Physics, 22.06.2019 19:50
State the below theories and give the name of the writer of the theory 1. wave theory 2. quantum theory 3. corpuscular theory 4. electromagnetic theory
Answers: 1
You know the right answer?
For a movie stunt, an empty truck with a mass of 2000 kg goes 10 m/s and runs into a stopped car of...
Questions
question
Mathematics, 04.12.2020 20:30