Physics 100A - General Physics I » Fall 2021 » Exam 2

Need help with your exam preparation?

Existing Quiz Clients Login here
Question #1
On your way to work you slam on your brakes. The coefficient of kinetic friction between road and tires is μk=0.6. Find the acceleration of your car.
A.   -2.5 m/s^2
B.   -4.2 m/s^2
C.   -5.9m/s^2
D.   12.2 m/s^2
E.   none of the above
Question #2
You slide your text book on a table. The initial velocity is 7m/s and μk=0.24. Find the distance your book travels before it comes to a stop.
A.   12.2m
B.   10.4m
C.   4.32m
D.   21.3m
E.   none of the above
Question #3
You are driving your car at 50mi/h and your round a corner of radius 60m. Find the force that static friction exerts on the car. The mass of the car is 1200kg.
A.   2.3X10^3 N
B.   8.9x10^3 N
C.   1x10^4 N
D.   890N
E.   none of the above
Question #4
Your weight is 650N, but a bathroom scale on your elevator building reads 580N. Find the acceleration of the elevator.
A.   2.0 m/s^2
B.   -1.1m/s^2
C.   -3.2m/s^2
D.   4.1 m/s^2
E.   none of the above

Need help with your exam preparation?

Existing Quiz Clients Login here