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Q. A vertical spring with a spring steady of 450-N/m is mounted on the floor. From directly above the spring, which is unstrained, a 0.3 kg block is dropped from rest. It collides with and sticks to the spring, which is compressed by 2.50 cm in bringing the block to a momentary halt. Assuming air resistance is negligible; from what height (in cm) above compressed spring was the block dropped?
Q. A uniform rod of length 0.90-m and mass 19.50 kg is balanced on a sharp edge at 0.660 m from the left end. At the left end hangs a mass of 30kg and the right end hangs an unknown mass so that the whole assembly is in equilibrium. Work out the torque on the center of mass of the rod alone with respect to the pivot point.
Question: Field and force with three charges? What is the electric field at the location of Q1, due to Q 2 ?
A rookie quarterback throws a football with an initial upward velocity component of 15.33 and a horizontal velocity component of 20.4. Overlook air resistance.
compute your apparent weight at the top of a Ferris wheel, given that the radius of the wheel is 7.1 , it completes one revolution every 30 , and your mass is 51 .
find the magnitude and direction of the impulse delivered to the ball by the floor.
Find out an average acceleration of the motorcycle
What is the reading of spring scale
A person lifts a 5kg cement block a vertical distance of 2.3m and after that aeries the block horizontally a distance of 6m. Determine the work completed by the person and by the force of gravity in this process.
A bicycle wheel is rotating at 45 when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.42.
At one instant, a mass (m = 2 kg) is at the location m and attached to one end of a spring with a spring constant ks = 60 N/m and a relaxed length L0 = 0.22 m. The origin is placed where the other end of the spring attaches to the ceiling.
Find the surface tension force on water inside a tube and height to which the water rises in the tube.
A person does 100 joules of work of pulling back the string of the bow. What will be the original speed of a 0.5 killogram arrow when it's fired from the bow.
What is instantaneous acceleration
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