A uniform meter stick supported at the 25-cm mark is in equilibrium when a 1-kg rock is suspended at the 0-cm end. Is the mass of the meter stick greater than, equal to, or less than the mass of the rock? Explain your reasoning.
Thanks in advance for any help!
Ball A, a 0.055 kg ball, moving with a speed of 2.50 m/s collides head-on with ball B, a 0.095 kg ball initially moving away from it at a speed of 1.15 m/s. Assume a perfectly elastic collision. Take the initial velocity of ball A to be in the positive x direction.
(A) What is the speed of...
A 17.0 kg monkey hangs from a cord suspended from the ceiling of an elevator.The cord can withstand a tension of 220 N and breaks as the elevator accelerates.
(A) What was the elevator’s maximum acceleration before the cord breaks?
(B) What is the tension in the string if the elevator...
The two forces F1 and F2 act on a 27.0-kg object on a frictionless tabletop. If F1=10.2 N and F2=16.0 N find the net force on the object and its acceleration for cases (a) and (b).
(a) is 90 degrees, in the 3rd quadrant
(b) is 120 degrees, from the positive y-axis and moving clockwise
To...