Q- Tarzan (m = 85.0 kg) tries to cross a river by swinging from a vine. The vine is 10.0 m long, and his speed at the bottom of the swing (as he just clears the water) will be 8.00 m/s. Tarzan doesn't know that the vine has a breaking strength of 1000 N. Does he make it safely across the river?
Q1- An airplane has a mass of 3.1 x 104 kg and takes off under the influence of a constant net force of 3.7x104 N. What is the net force that acts on the plane's 78kg pilot?
Q2- In the amusement park ride known as Magic, powerful magnets accelerate a car and it's riders from rest to 45 m/s in 7 sec…
Q1- A firecracker, of mass 16 grams, explodes into two pieces (one of 4 grams and the other of 12 grams). The 4 gram piece has velocity just after the explosion of 10 m/s to the left. Find the velocity of the other piece just after the explosion.(Requested by Jay F)
Q2- Consider a conical pendulum …
Q1- A woman at an airport is towing her 15.0 kg suitcase at constant speed by pulling on a strap at an angle above the horizontal. She pulls on the strap with a 40 N force, and the friction force on the suitcase is 20.0 N.
(a) Draw a free-body diagram of the suitcase.
(b) What angle does the strap…
Q1- Find the center of mass of a uniform right circular solid cone of base radius a and height h.
Q2- Find the center of mass of a hemispherical shell of constant density with inner radius r1 and outer radius r2.
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