A mass of 3000 kg moves uniformly on the horizontal line, TO the LEFT. Assume the drag force is 0.3 times the weight of the vehicle. a. Tell the forces acting on the car, state the characteristics of each force.

b / Express the forces on the scale of 1 cm corresponding to 3000N.
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How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit