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What values do the acceleration a and velocity v have shortly after he leaves the point under the pack (x=0)?
Determine the time at which the velocity will be zero, the position and distance traveled at that time, and the acceleration of the particle at that time.
When the rocket is 800 m above the ground the engine fails, and the rocket goes into free fall, with a downward acceleration of 9.80 m/s2.
What force must be applied to the wedge? Take m=0.250 kg and M=0.500 kg.
With what angular speed must it rotate so that the residents on it will experience the same acceleration due to gravity on Earth?
One block has a mass M = 500 g, the other has mass m = 460 g, and the pulley, which is mounted in horizontal frictionless bearings, has a radius of 5.00 cm.
Selected values of function f and g and their derivatives, f' and g' are given in the table If h(x)=f(g(x)), what is h'(30)?
A car of 1570 kg moving at 17.5 meter/second must stop at 94.5 meters. Which is the magnitude of the stopping force? Suppose a steady deceleration.
A ball that weights 5N falls on earth what is the net force that acts on the ball during the fall?
A 50 kg ice skater is moving at 5 m/s when she grabs the loose end of a rope, then opposite end of which is tied to a pole.
A man with mass sits on a platform suspended from a movable pulley, as shown in the figure , and raises himself at constant speed by a rope
A packing crate is placed on a plane inclined at an angle of 35o from horizontal. If the coefficient of static friction between the crate and the plane is 0.65
What is the acceleration (due to gravity) of the satellite in orbit? (in meters/second^2).
A horizontal force of 3.00 N is applied to a 1.00-kg radio, initially at rest on a table with a level surface.
A 0.0050-kg bullet traveling with a speed of 200 m/s penetrates a large wooden fence post to a depth of 0.030 m.
Determine (a) the initial vertical acceleration of the rocket, (b) its velocity after 8 seconds, and (c) how long it takes to reach an altitude of 9500m.
A ball is launched up a semicircular chute in such a way that at the top of the chute, just before it goes into free fall.
The 100 kg block in the figure takes 5.50 s to reach the floor after being released from rest. A. What is the mass of the block on the left?
Discuss the dependence of the tension force on T. If you increase the T of a rubber band, does it (tend to) expand or contract?
The 16-lb block A is released from rest in the position sho Neglecting the effect of friction and the masses of the pulleys, determine th velocity
A 5.0-kg block at rest on a frictionless surface is acted on by forces F1 = 5.5 N and F2 = 3.5 N. What additional horizontal force will keep the block at rest?
Find the tension in the strings when the air flow is turned off and the coefficient of friction between the glider and the track is 0.47.
During a violent thunderstorm, hail of diameter 1.0 cm falls directly downward at speed of 25m/s.
The graph has velocit on the y axis in m/s and the x axis is time in seconds. The points given make the grph line.
How many kg of sand would it take for the total surface area of all the grains of sand to equal the surface area of the cube? in units of kg.