Questions from College Physics

Q: A football receiver running straight downfield at 5.50 m/

A football receiver running straight downfield at 5.50 m/s is 10.0 m in front of the quarterback when a pass is thrown downfield at 25.0° above the horizon (Fig. P3.58). If the receiver nev...

Q: The determined Wile E. Coyote is out once more to try

The determined Wile E. Coyote is out once more to try to capture the elusive roadrunner. The coyote wears a new pair of power roller skates, which provide a constant horizontal acceleration of 15.0 m/...

Q: A 50.0-g Super Ball traveling at 25.

A 50.0-g Super Ball traveling at 25.0 m/s bounces off a brick wall and rebounds at 22.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.50 ms, what is the ma...

Q: Two packing crates of masses 10.0 kg and 5.

Two packing crates of masses 10.0 kg and 5.00 kg are connected by a light string that passes over a frictionless pulley as in Figure P4.60. The 5.00-kg crate lies on a smooth incline of angle 40.0&Aci...

Q: A 1.00 x 103 car is pulling a 300.-

A 1.00 x 103 car is pulling a 300.-kg trailer. Together, the car and trailer have an acceleration of 2.15 m/s2 in the positive x - direction. Neglecting frictional forces on the trailer, determine (a)...

Q: Two blocks of masses m1 and m2 (m1 > m2)

Two blocks of masses m1 and m2 (m1 > m2) are placed on a frictionless table in contact with each other. A horizontal force of magnitude F is applied to the block of mass m1 in Figure P4.62. (a) If...

Q: In Figure P4.63, the light, taut, unstretchable

In Figure P4.63, the light, taut, unstretchable cord B joins block 1 and the larger-mass block 2. Cord A exerts a force on block 1 to make it accelerate forward. (a) How does the magnitude of the forc...

Q: An object with mass m1 = 5.00 kg rests on

An object with mass m1 = 5.00 kg rests on a frictionless horizontal table and is connected to a cable that passes over a pulley and is then fastened to a hanging object with mass m2 = 10.0 kg, as show...

Q: Objects with masses m1 = 10.0 kg and m2 =

Objects with masses m1 = 10.0 kg and m2 = 5.00 kg are connected by a light string that passes over a frictionless pulley as in Figure P4.64. If, when the system starts from rest, m2 falls 1.00 m in 1....

Q: Two objects with masses of 3.00 kg and 5.

Two objects with masses of 3.00 kg and 5.00 kg are connected by a light string that passes over a frictionless pulley, as in Figure P4.66. Determine (a) The tension in the string, (b) The acceleration...