Question

a) Draw fully labelled free body and extended free body diagrams for the object.

b) Explain what causes the object to roll instead of slide.

2. Estimate how far the Earth moves when you jump up to a height of 10 cm. Hint: The inertia of the earth is about 10^25 kg and its radius is about 10^5 km.

3.

5. A solid cylindrical object of rotational inertia, I, and radius, R, rolls down a angle e with the horizontal as shown in the figure. ramp that makes an (a) (6pts) Draw fully labelled free-body and extended free-body diagrams for the object. ts) a 10.0 m long bar is attached, by a In the figure, frictionless hinge, H, to a wall. The bar is held horizontal by an angle, =53.0, with it. a rope that makes The bar is uniform and weighs 39.9 N. What distance, , from the hinge should & 100 N weight be suspended for the tension T in the rope to be 125 N? HO x A 5.99 m from the hinge B 7.99 m from the hinge C 7.50 m from the hinge D8.15 m from the hinge E 5.30 m from the hinge 100 N -10.0 m

Answer 1

yeinee у cad arue to frictim due insteod ojedt Couses to centre we place at sCme emain M, 60 Txw 60 хо1 6 x lAj downumd ensth ul maue

39.9 N Hinge 1H T sin 31o 31. 1S 1о0 х 39.XS