Recent content by katiegerster

i actually just figured out question one but i don't even know how to start 2 and 3 :(

what are those?

i don't know what you mean, but if i could use the conservation of energy this is the formula i have (1/2mv^2+1/2Iw^2+mgh)i= (1/2mv^2+1/2Iw^2+mgh)f

i know, its because i don't even know what equation to use for it, no one can seem to figure out how to solve it...

i wasnt sure if i could use that or not

the second question is just conceptual so i had hoped it wouldn't make things to confusing, I am sorry

oh KEr= 1/2(I)(w^2)

Homework Statement 3. A plank of length L=1.800 m and mass M=7.00 kg is suspended horizontally by a thin cable at one end and to a pivot on a wall at the other end.The cable is attached at a height H=1.50 m above the pivot and the plank's CM is located a distance d=0.700 m from the pivot...

Homework Statement 2. A mass M=169 kg is suspended from the end of a uniform boom.The boom (mass=90.0 kg, length=3.60 m) is at an angle θ=68.0 deg from the vertical, and is supported at its mid-point by a horizontal cable and by a pivot at its base. Calculate the tension in the horizontal...

physics circular motion and gravity help please :( Homework Statement 1. a) A solid homogeneous sphere of mass M = 4.80 kg is released from rest at the top of an incline of height H=1.35 m and rolls without slipping to the bottom. The ramp is at an angle of θ = 25.7o to the horizontal...

Homework Statement 1. The mass of a star is 1.830×1031 kg and it performs one rotation in 37.30 days. Find its new period (in days) if the diameter suddenly shrinks to 0.850 times its present size. Assume a uniform mass distribution before and after. 2. A pulley with mass Mp and a radius...

anything is appreciated! 1. The mass of a star is 1.830×1031 kg and it performs one rotation in 37.30 days. Find its new period (in days) if the diameter suddenly shrinks to 0.850 times its present size. Assume a uniform mass distribution before and after. 2. A pulley with mass Mp and a...

physics circular motion and gravity help please :( 1. a) A solid homogeneous sphere of mass M = 4.80 kg is released from rest at the top of an incline of height H=1.35 m and rolls without slipping to the bottom. The ramp is at an angle of θ = 25.7o to the horizontal. Calculate the speed of the...