A 100 km/h velocity vector is drawn to a scale and is 2 cm in length. If drawn to the same scale, a 50 km/h vector would have what length?

In what direction does the medium move relative to the direction of the wave? explain.

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up