Fig. 2.1 shows a train
Fig. 2.1
The total mass of the train and its passengers is 750000kg. T...
Fig. 2.1 shows a train
Fig. 2.1
The total mass of the train and its passengers is 750000kg. The train is travelling at a speed of 84m/s.
The driver applies the brakes and the train takes 80s to slow down to a speed of 42m/s.
(a) Calculate the impulse applied to the train as it slows down,
impulse =
[3]
(b) Calculate the average resultant force applied to the train as it slows down,
force =
(2)
Answers: 2
Physics, 22.06.2019 19:30
What characteristics of hv2112 make it the best candidate to be classified as a thorne-zytkow object?
Answers: 3
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
Physics, 22.06.2019 21:30
The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? ab c d
Answers: 2
Physics, 23.06.2019 00:00
What energy transformations occur each time the skateboarder rolls up the ramp?
Answers: 2
Biology, 14.07.2019 14:20
Biology, 14.07.2019 14:20
Mathematics, 14.07.2019 14:20
History, 14.07.2019 14:20
Mathematics, 14.07.2019 14:20