## Forces Resources Finding the potential of a force

Hi   I have been asked to find the potential V(x) of the force F(x)=k(x-L).   Can anyone help me with this please? Thanks Mechanics Question - Finding speed reduction time

A car of mass 1000 kg has its speed reduced from 81 km/h to 54 km/h by brakes producing a force of 1250 N. How long does this take? Determine the work done by the brakes on the car. Determine... Force of the charge

Two charges of 10-6 C are located 1cm apart (a) What is the force on a charge +10-8 halfway between them? (b) What is the force on a charge of -10-8 C at the same place? Physics Power and Work

A 49kg bicycle rider delivers an average of 0.28 hp. The mass of the bicycle is 2.1kg and the hill she is climbing is 245m tall. How much time will this take? Forces on inclines

Why is it easier to pull an object up an incline rather than pushing? A 2kg block is resting on a rough incline which is at a 30 degree angle.

Which is larger, the normal force or the force of friction? Newton's law in 2D

A 1.5 kg book is held against the wall by an applied force. The applied force is 60° above the horizontal. Given that the static coefficient of friction between the block and the wall of 0.65, determine:   a)... Finding a tension on a rope

A string has a 3.5 kg block on one end and a 2.5 kg ball on the other. The system is suspended over a table, with the ball hanging down and the block resting on the table. Given that the table has... How do i use the energy equation to answer the question below?

A particle of mass m = 10kg moves along a straight line under the action of force F = λ/x4 , where λ is some constant. A measurement shows that the particle passes the point x = 1m with... What is the frequency

After some time of fleeing, Bob realizes it is almost his curfew time and that his mom will ground him if he is not back at home (Bob’s mom can be scarier than the police). Bob turns around... Find the acceleration of the books:

A Student moves a box of books with a rope by pulling the rope with a force of 90 N at an angle of 30°.   The books have a mass of 20 kg and a coefficient of friction between the box... Newton's gravity and weight qs

An astronaut has a mass of 80 kg, but on an unknown planet, the bathroom scale reads 15 kg when the astronaut stands on it. What is the astronaut's weight and the gravitational field strength on the... can someone tell me how to solve this?

A block of mass 7.33 kg lies on a frictionless horizontal surface. The block is connected by a cord passing over a pulley to another block of mass 2.45 kg which hangs in the air, as shown... What is the force on the skier parallel to the slope? The acceleration of gravity is 9.8 m/s 2 . Answer in units of N.

A skier of mass 87.8 kg comes down a slope of constant angle 44◦ with the horizontal. What is the force on the skier parallel to the slope? The acceleration of gravity is 9.8 m/s 2... Formula for solving angle of tilt

A table lamp has a circular base of diameter 120 mm and a height of 300 mm. It stands on a rough horizontal surface. The Centre of mass of the table lamp is 60 mm above its table. Why the table lamp... Statics question

A machine component of mass 14kg is constrained to move only in the direction of the slide as shown. It is subject to the force F= 350N as shown. Neglecting effects of static weight, calculate its... What is the friction force

A 25 kg wooden crate is being pushed against a large spring with a spring constant of 1200 N/m. If the coefficient of friction between the crate and the ground is 0.68, how much does the spring... Dynamics and Forces - Conservation of Momentum

After a 1.30 x 10^2kg astronaut (incl. equipment) connects a safety line (length = 22.0m) to herself and to the spacecraft (mass = 2.80 x 10^3kg), she pushes against the craft and moves away at a...