Question

physics help!!!!!!!1

Answer 1

i need help n motion

Answer 2

?

Answer 3

problem on pulley and friction

Answer 4

ok

Answer 5

can u help?

Answer 6

yes

Answer 7

A particle of mass 1gm executes an oscillatory motion on the concave surface of spherical dish of radius 2 m placed on a horizontal plane.If the motion of the particle begins from a point on the dishat a height of 1cm from the horizontal plane and the coefficient of friction is 0.01 ,find the total distance covered by the particle before it comes to rest.

Answer 8

i might be wrong but all the potential energy turn to the work of the friction force


mgh = rtheta*frictionforce
mgh = rtheta*mg*0.01
h/(0.01r) = theta
1/2 = theta

so the distance covered 1/2 * r = 1m

Answer 9

tell me if you agree cause i might be wrong.

Answer 10

actually N is mgcostheta

Answer 11

but it almost always 1 .. you can solve with costheta but the answer wont dfffer much