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2. A slender metal pole has a mass of 1.0 kg and is 1.0 meter long....
A uniform metal meter-stick is balanced with a 1.0 kg rock attached to the left end of the stick. If the support is located 0.25 m from the left end, what is the mass of the meter-stick? (Hint: meter-stick is 1 m long). 0.6 kg 2.0 kg 1.0 kg 3.0 kg
A 5 meter long plank has a mass of 4 kg. It is supported by 2
supports, the
first at 1 meter from the end, and the second at 3 meters from that
same end.
How much upward force is supplied by the second support?
You try and whirl a 1.0 kg mass on a 1.0 meter long string, at constant speed in a horizontal circle. However, you find that the string is at an angle of 37 degrees below the horizontal because of gravity. How fast is the mass moving in m/s?
A pendulum consists of a 1.0 kg ball fastened to the end of a 80-meter-long length of strong wire. We set it oscillating back and forth with an angular amplitude 0.19 radians (A) What is the period of oscillation? (B) What is the maximum speed of the ball? (C) What is the total energy of the system? (Note: you may assume that gravitational PE is zero at the bottom of the swing.) seconds. m/s.
Consider hanging masses off the ends of a meter stick which is nailed to the wall, as shown the figure. Take the meter stick to be a 1.0 m long massless rod, the nail is d = 12 from the end as shown, and it is free to rotate about this point. If I put a mass m_1 = 5.0 kg onto the left of the meter stick, how much mass m_2 should I put onto the right end to...
A pendulum of length L = 1.0 meter and bob with mass m = 1.0 kg is released from rest at an angle 0 = 30' from the vertical. When the pendulum reaches the vertical position, the bob strikes a mass M= 3.0 kg that is resting on a frictionless table that has a height h = 0.85m. (a). When the pendulum reaches the vertical position, calculate the speed of the bob just before it strikes the box. (6 marks]...
A slender rod is 80.0 cm long and has mass 0.390 kg . A small 0.0200-kg sphere is welded to one end of the rod, and a small 0.0500-kg sphere is welded to the other end. The rod, pivoting about a stationary, frictionless axis at its center, is held horizontal and released from rest. What is the linear speed of the 0.0500-kg sphere as its passes through its lowest point?
4) A 1 meter-long, funny-shaped meter stick has an unknown mass but a center of gravity located at 0.75 m from the left end. When a metal wedge is placed at the middle of the bar and a .50-kg mass is hung from the left end, the bar balances perfectly on the metal wedge. a) Determine the mass of the funny-shaped meter stick (10 pts). b) Calculate the amount of upward force provided by the metal wedge (10 pts).
The mass of the uniform slender steel rod, shown in Figure 2, is 3 kg. The system is set in motion with small oscillations about the horizontal equilibrium position shown. (i) Determine the position x for the slider such that the system period is 1 s. (ii) When the pivot is replaced by a built-in support that restricts any rotation at O and the spring is moved to the right-hand end with the 1.2 kg mass removed, calculate the frequency...
4) A 1 meter-long, funny-shaped meter stick has an unknown mass but a center of gravity located at 0.75 m from the left end. When a metal wedge is placed at the middle of the bar and a .50-kg mass is hung from the left end, the bar balances perfectly on the metal wedge. a) Determine the mass of the funny-shaped meter stick (10 pts). b) Calculate the amount of upward force provided by the metal wedge (10 pts). 5)...