Trevor is pulling his younger brother in a wagon. he pulls the wagon 50 m to the corner with a force that is a parallel with the ground. he then turns the wagon around and pulls it 50 m back to the starting point with the same force at an angle of 30 degrees with respect to the ground. how does the amount of work trevor performs going to the corner compare with the amount of work he performs coming back?
a) they are the same because he uses the same amount of force
b) they are the same because he travels the same distance
c) he does less work coming back because the force moving the wagon is only 50cos30
d)he does more work coming back because the force moving the wagon is only 50cos60
Answers: 3
Physics, 23.06.2019 06:30, claudiseliss4910
If a 2 ounce coin is dropped from the top of the washington monument and has a final velocity of 300 mph (miles per hour) when it hits the ground, how much kinetic energy will it have at that time?
Answers: 2
Physics, 23.06.2019 07:30, linacelina6027
For two variables in a direct proportion, what is the result of doubling one variable?
Answers: 1
Trevor is pulling his younger brother in a wagon. he pulls the wagon 50 m to the corner with a force...
Mathematics, 11.03.2021 14:00
Mathematics, 11.03.2021 14:00
Mathematics, 11.03.2021 14:00
Mathematics, 11.03.2021 14:00
Computers and Technology, 11.03.2021 14:00
Mathematics, 11.03.2021 14:00
Mathematics, 11.03.2021 14:00