Mechanics | Relativity Answers

The box having mass of m is being pulled by a motor. Initial velocity of the box is vy, Motor pulles the box by force F= 500s+550, where s is the distance the box is pulled (meters), and force is in newtons. Define the velocity and acceleration of the box as a function of distance 's'. If the motor has efficiency of e = 0.65, power input required to be supplied by the motor as a function of distance,

The box having mass of m is being pulled by a motor. Initial velocity of the box is vy, Motor pulles the box by force F= 500s+550, where s is the distance the box is pulled (meters), and force is in newtons. Define the velocity and acceleration of the box as a function of distance 's'. If the motor has efficiency of e = 0.65, power input required to be supplied by the motor as a function of distance,

Positions of 2 blocks are placed on the plane and released as depicted in the figure. The coefficients of kinetic friction between the blocks and the ground are uA=0.2 and us=0.4, respectively. Find the force emerging in the link which connects blocks A and B together. Mass of the link is neglected. Block A and block B weighs 20kg and 4 kg.

Mustafa pumps a 7.26 kg shot straight up, giving it a constant upward acceleration from rest of 44.0 m/s2 for a height 60.0 cm. He releases it at height 2.30 m above the ground. Ignore air resistance.Calculate the speed of the shot when Mustafa releases it?
How high above the ground does it go?H ow much time does he have to get out of its way before it returns to the height of the top of his head, 1.93 m above the ground?

a meter scale is kept in a satellite moving with velocity 0.6w.r.t earth. calculate the length of the rod as measured by the observer from earth

An athlete running at the velocity of 23m/s due east is confronted with two trade winds. One wind traveling at 10m/s in a direction of N65 degrees E and the other wind traveling at 8m/s in a direction S 70 degree E. Find the resultant velocity and direction of the athlete

Whether the work is performed by the weight acting on a vase standing on the table, why?

Lift 100g and 1kg weights to a height of 1 m above the table. You will do 1J and 10J work. Explain how it was calculated.

A cumin canister of mass m=0.4kg slides across a horizontal frictionless counter with
speed v=0.5m/s. It then runs into and compresses a spring of spring constant k=
750N/m. When the canister is momentarily stopped by the spring, by what distance d
is the spring compressed