A particle is moving in one dimension along the x-axis starting from the initial position xo at 1-0. If a constant force is acting on the particle, the trajectory of x(f) will be, (b) O

An inclined plane making an angle of 25º with the horizontal has a pulley at its top. A 30kg  block on the plane is connected to a freely hanging 20kg block by means of a string passing  over the pulley. Compute the distance the 20kg block will fall in 2 second starting from rest.  Neglect friction.

A small boat is being pushed up a ramp into the back of a flatbed truck. The boat is sitting at the top of the ramp, which is located 1.4 m above the ground. The boaters think the boat is safe there, and begin to walkaway. However, they have neglected the thin layer of ice that has formed on the ramp, which is angled at 30◦ up from the ground. Neglecting the friction between the boat and the ramp, how long do the boaters havebefore the boat reaches the bottom of the ramp?

A particle of mass m = 1.50 kg moves along one dimension and is subject to a single force, whose potential energy function is given by U(x) = x4 – 2x2 + 4 (where U is measured in Joules and x is measured in meters). At the moment when the particle is located at position x = 1.50 m, its speed is v = 2.50 m/s. %3D