03/27/23

A mass of 50 g is attached to a spring and undergoes simple harmonic motion. ts maximum acceleration is 15 m/s^2 and its maximum speed is 3.5 m/s. Determine:
A mass of 50 g is attached to a spring and undergoes simple harmonic motion. ts maximum acceleration is 15 m/s^2 and its maximum speed is 3.5 m/s. Determine:a) Angular frequencyb)Spring constantc)... more
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02/16/21

A roundish object is rolling along the ground with 13.1 J of rotational KE. If its angular speed is 8.33 rad/s, what is its moment of inertia?
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02/13/21

A stationary ball drops from the bleachers and reaches the ground at 9m/s. What is the height of the bleachers?
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02/12/21

What formulas should I use for this exercise?
A 8.90-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.480. Determine the kinetic frictional force that acts on... more
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02/09/21

Please Help!!! A spring force is given by the formula F=2x-15x^2, where F is in N and x is in m. What is the change in potential energy wen the spring is stretched 1m from it's equilibrium position.
A spring force is given by the formula F=2x-15x2, where F is in N and x is in m. What is the change in potential energy wen the spring is stretched 1m from it's equilibrium position.
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02/09/21

What is the instantaneous power delivered by the net force at t=2s to a 2kg mass moving according to x(t) = 1/3t^3?
What is the instantaneous power delivered by the net force at t=2s to a 2kg mass moving according to x(t) = (1/3)t3?
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02/09/21

I know the answer for this question is 19, but I don't know if it is in the positive or negative x-direction.
What is the force on a particle at x=2m given the potential energy as the function U(x)=6x2-5x+4? Ans: 19....?
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