Answer:
Explanation:
Given data
Mass m=120.0 kg
Coefficient of static friction
The coefficient of sliding friction
For Part (a) Maximum force
According to Newtons second law the net force aced on the body is given by
The friction force is given by
Conclude that
For Part (b) Acceleration
The acceleration due to dynamic friction is given by:
The dynamic friction is given by:
So the acceleration given by
C is correct. Only a closed circuit can carry current, opening a switch disconnects the circuit and stops current from flowing. Remember, all current flows in loops, if you can't make a loop out of it, current can't flow, and opening a switch, assuming no other paths for current exist, will completely stop the current.
The instantaneous speed at 2 seconds =
3 m/s
The average speed over the entire trip is
2 m/s
Answer: Terminal velocity is achieved, therefore, when the speed of a moving object is no longer increasing or decreasing; the object's acceleration (or deceleration) is zero.
Explanation:.