Questions from College Physics

Q: You are pulling a suitcase through the airport at a constant speed

You are pulling a suitcase through the airport at a constant speed by exerting a force of 25.0 N at angle 30.0° from the vertical. What is the force of friction acting on the suitcase?

Q: A spring scale hangs from a cord that is attached to a

A spring scale hangs from a cord that is attached to a hook in the ceiling. A 10 kg object hangs from a second cord connected to the bottom of the scale. The weights of the cords and the scale are neg...

Q: Two springs are connected in series so that spring scale A hangs

Two springs are connected in series so that spring scale A hangs from a hook on the ceiling and a second spring scale, B, hangs from the hook at the bottom of scale A. Apples weighing 120 N hang from...

Q: Two boxes with different masses are tied together on a frictionless ramp

Two boxes with different masses are tied together on a frictionless ramp surface. What is the tension in each of the cords?

Q: A 200.0 N sign is suspended from a horizontal strut

A 200.0 N sign is suspended from a horizontal strut of negligible weight. The force exerted on the strut by the wall is horizontal. Draw an FBD to show the forces acting on the strut. Find the tension...

Q: The drawing shows a wire attached to two back teeth and stretched

The drawing shows a wire attached to two back teeth and stretched across a front tooth. The /

Q: A crow perches on a clothesline midway between two poles. Each

A crow perches on a clothesline midway between two poles. Each end of the rope makes an angle of θ below the horizontal where it connects to the pole. If the weight of the crow is W, what...

Q: A 2.0 kg ball tied to a string fixed to

A 2.0 kg ball tied to a string fixed to the ceiling is pulled to one side by a force //

Q: A 45 N lithograph is supported by two wires. One wire

A 45 N lithograph is supported by two wires. One wire makes a 25° angle with the vertical and the other makes a 15° angle with the vertical. Find the tension in each wire.

Q: An ideal pulley is hung from the ceiling by a rope.

An ideal pulley is hung from the ceiling by a rope. A block of mass M is suspended by another rope that passes over the pulley and is attached to the wall. The rope fastened to the wall makes a right...