What is the maximum acceleration of the needle
A sewing machine needle moves up and down in simple harmonic motion with an amplitude of 1.27 cm and a frequency of 2.55 Hz. What is the maximum acceleration of the needle?
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A uniform plank of length 5.5 m and weight 205 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 447 N walk on the overhanging part of the pla
A 51.5-g Super Ball traveling at 28.5 m/s bounces off a brick wall and rebounds at 16.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 4.10 ms, what is the magnitude of the average acceleration of the ball
A car with a 1m long radio antenna travels at 60 km/hr in a place where the Earth's magnetic field is 6.00 x 10^-5T. What is the maximum possible induced emf in the antenna as it moves through the Earth's magnetic field?
A 13 g bullet traveling 224 m/s penetrates a 2 kg block of wood and emerges going 166 m/s. If the blosk is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
As you think about it, you're not sure he threw the ball exactly horizontally. As you watch him throw, the pitches seem to vary from 5° below horizontal to 5° above horizontal. What is the range of speeds with which the ball might have lef
A car initially traveling at 25.9 m/s undergoes a constant negative acceleration of magnitude 1.60 m/s2 after it brakes are applied. How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the ti
A light rope passes over a light, frictionless pulley. One end is fastened to a bunch of bananas of mass M, and a monkey of mass M clings to the other end.
A 13 g bullet traveling 222 m/s penetrates a 2.0 kg block of wood and emerges cleanly at 162 m/s. If the block is stationary on a frictionless surface when hit, how fast does block move after the bullet emerges?
What is the greatest mass of groceries that can be safely placed if the bag is being lifted upwards with an acceleration of 1.41 m/sec2?
Travels at a constant speed until it is near the second station, when it brakes at 2.0 m/s2 in order to stop at the station. How long did this trip take?
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