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Determination of angular displacement and angular acceleration of the rotor using the equation of motion in rotational dynamics.
A pulsar is a quickly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner.
Momentum and collision - Determination of combined velocity of the object after collision, velocity of the bullet/block after collision and gain of potential energy /loss of Kinetic energy of the bl
A 55 kg swimmer is standing on a stationary 210 kg floating raft. The swimmer then runs off the raft horizontally with a velocity of +4.60 m/s relative to the shore. Find out the recoil velocity tha
While jumping straight down you could be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 75 kg man just be
A person is making homemade ice cream. She exerts the force of magnitude 22N on the free end of the crank handle, and this end moves in the circular path of radius 0.28m. The force is always applied
A basketball player makes a jump shot. The 0.6 kg ball is released at a height of 2 m above the floor with a speed of 7.2 m/s. The ball goes through the net 3.10 m above the floor at a speed of 4.20
A 60 kg basketball is dropped out of a window that is 6.10 m above the ground. The ball is caught by a person whose hands are 1.50 m above the ground.
On a banked race track, the smallest circular path on which cars can move has a radius of 112m, while the largest has a radius of 165m, as drawing illustrates. The height of the outer wall is 18m.
A stone has a mass of 6.0 x 10-3 kg and is wedged into the tread of an automobile tyre, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel
A cup of coffee is sitting on a table in an airplane that is flying at a constant altitude and a constant velocity. The coefficient of static friction between cup and table is 0.3.
Airplane flight recorders must be able to survive catastrophic crashes. Therefore, they are typically encased in crash-resistant steel or titanium boxes that are subjected to rigorous testing.
Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test, this gun accelerates the 5.0 kg projectile from rest to a speed of 4.0
A rocket is fired at a speed of 75 m/s from ground level, at an angle of 60 degrees above the horizontal. The rocket is fired toward the ground 11.0 m high walls, which is located 27 m away. By how
A volleyball is spiked so that it has an initial velocity of 15m/s directed downward at an angle of 55 degrees below the horizontal. What is the horizontal component of the ball's velocity when the
The altitude of a hang glider is increasing at a rate of 6.80 m/s. At the same time, the shadow of the glider moves along the ground at a speed of 15.5 m/s when the sun is directly overhead. Find t
Find out the velocity with which he strikes the water. [Hint: When the diver reaches the water his displacement is y= -3.0m (measured from the board), assume that the downward direction is chosen as
In 1954 the English runner Roger Bannister broke the four-minute barrier for the mile with a time of 3:59.4 s (3 min and 59.4 s). In 1999 the Moroccan runner Hicham el-Guerrouj set a record of 3:43.
Determination of acceleration and tension in the string when connected to the masses M and m.
Determination of work completed in pushing the block against the wall to overcome friction.
An automobile travels on a straight road for 40.0 km [E] at 30.0 kilometers per hour (km/h). It then continues in the same direction for another 40.0 km [E] at 60 kilometers per hour (km/h). Compute
A stone is thrown vertically upward with a speed of 24.0 meters per second (m/s). How fast is it moving when it reaches a height of 17.0 meters (m).
An airplane flies due west at a velocity of 645 kilometers per hour (km/h). The wind blows from the north at a velocity of 125 kilometers per hour (km/h). What is the plane's resultant velocity.
A block of unknown mass, m is brought into the configuration shown. It was measured that upon release the block shot upward the maximum distance of 2m. What is the mass of this block? The upper spri
The Quantised Oscillator can be assumed ot be an Oscillation Spring Block System about its mean position. The energy of the oscillator is E= 1/2 KA2 and the frequency of the oscillator is f=1/2&prod