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With block C placed on top of B. the system undergoes simple harmonic motion with an amplitude of 0.12 m. Block B has a speed of 0.22 m/s at a displacement of 0.075 m from its equilibrium position. Determine the period of the motion. Express your answer with the appropriate units. What minimum value for the coefficient of static friction mu_s between B and C is needed if C is never to slip? Ignore any friction between B and the horizontal surface.


Determine the gravitational force in \mu N

μN acting between two spheres that are touching each other. Express the result with two decimal places.

The mass of each sphere is 220 kg and the radius is 306 mm. Use as a gravitational constant value G = 66.7430 10-12 m3 kg-1 s-2

state all conservation principles with equations for a single particle and for a system of particles



5.At the instant, traffic light turns green, an automobile that has been waiting at an intersection of roads accelerate with 5m/s. At the same instant a truck travelling with a constant velocity of 20m/s overtake and passes the automobile.
a.How far beyond it's starting point will the automobile overtake the truck.
b.How fast will it be travelling?
40×4g×40^3=bw^3E............(1)
60×4g×60^3=bw^3E............(2)
Solve for E and g simultaneously

Each square in the grid is 0.50 m x 0.50 m in dimensions. Force F = 2025 N and a force H =1000N. Find the moments of each force about the points A,B,C,and D.


A 4.0kg object has a velocity of 3.0i m/s at one instant. Eight seconds later, its velocity is (8.0i+10.0j) m/s . Assuming the object was subject to a constant net force, find (a) the components of the force and (b) its magnitude.
A rocket of mass 1000kg moves vertically upward with an acceleration of 4.0m/s2 . What is the total force generated by it engines? (g=9.8m/s2 .)
The potential energy function for a system is given by U(x) = -x3 + 2x2 + 3x.
Determine the force Fx as a function of x.
For what values of x is the force equal to zero?

body of mass 0.25 KG moving with velocity 12 m/s is stopped by applying a force of 0.6 N calculate the time taken to stop the body. Also calculate the impulse of this force.


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