Mechanics | Relativity Answers

a small mass is suspended from a long thread so as to form a simple pendulum. the period T of oscillation depends on the m the length L of the thread and the acceleration g of free fall at the place concerned T= KM^x L^y G^z where x,y,z are unknown and K =211 (1) Find the values of X Y Z (2) Hence derive an expression relating T M G and L

a car takes off from a stop sign with zero initial velocity but with nonzero acceleration of 6.50 m/s2.
a. what is the car's speed after 5.00 seconds?
b. What is the car's position after 5.00 seconds?
c. After the initial 5.00 seconds the car travels at a constant speed you found in (a). How long does it take for the car to travel 250 meters?

A heavy flywheel of mass 15kg and radius 20cm is mounted on an horizontal axle of radius 1cm and negligible mass compared with the flywheel, neglecting friction,find the angular acceleration if a force of 4kg is applied tangentially to the axle

Suppose a rocket-propelled motorcycle is fi red from rest horizontally across a canyon 1.00 km wide. (a) What minimum
constant acceleration in the x-direction must be provided by the engines so the cycle crosses safely if the
opposite side is 0.750 km lower than the starting point? (b) At what speed does the motorcycle land if it maintains
this constant horizontal component of acceleration? Neglect air drag, but remember that gravity is still acting in the
negative y-direction.

A car trunk lies on a horizontal rough floor. The coefficient of friction between the truck and the floor is 0.4330.calculate the magnitude of the force p which is necessary to pull the truck horizontally if the force is applied a. Horizontally b.At 30°above the horizontal

a book is given a brief push to make it slide up a rough incline. it comes to stop and slides back down to the starting point. does it take the same time to go up as to come down?

A rope is fastened to two hooks 4.0m apart on a horizontal ceiling. To the rope is attached a 10kg mass so that the segments of the rope are 3m and 2m. Compute the tension in each segment

In work energy theorem,is it possible if the incline up the slope is around 80 degrees?Like in a water slide when they slide back up?

what is the final velocity of a 150 kg motorcycle driven by a 50.0 kg rider, accelerated from rest for 11 s by an unbalanced force of 800.0 N South

A girl pulls her school box with a force of 78 Newton inclined at 27 degrees to the ground calculate the part of the force moving the box along the ground