A car travelling along a straight road has kinetic energy of 180 kJ. The brakes are applied, and it is brought to rest over a distance of 60 m. What is the average force of the car breaks?
KE GPE

Quiz
•
Physics
•
9th Grade
•
Hard
Logan Anderson
Used 7+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3000 N
10800 N
3 N
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A car of mass 1500 kg, travelling at a steady speed, has a kinetic energy of 200 kJ. What is the speed of the car?
0.52 M/S
16.3 M/S
266.7 M/S
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the gravitational potential energy stored in a 60 kg boy sitting at the top of a 2 m high slide?
1365 J
1697 J
1178 J
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the unit of gravitational potential energy?
N
J
N/kg
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A mass of 40 kg and a mass of 80 kg are dropped from rest, from the same height. If air resistance is ignored, which would hit the ground first?
The 40 kg mass
The 80 kg mass
Both at the same time
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following has kinetic energy?
A book on a bookshelf
a girl sprinting
a streched spring
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following has gravitational potential energy?
A book on a shelf
A girl sprinting
a stretched spring
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