A 80.00 kg object is hanging from two ropes. One rope (F1) is pulling due West. The second rope (F2) is pulling 80.00 degrees up of East. Calculate the force in the first rope (F1) in Newtons. How would I do this?
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1) a car moving at 50km/h crashes Into the barrier and stops in 0.25 m a) if a 10kg child were to be stopped in the same time , what is the average force must be exerted ? c)approximately what is the mass of an object whose weight equals to the force in Part b?Could you lift such a mass with your arms ? d) what does your answer to part c say about holding an infant on your lap instead of using a separate infant restraint? PS : I know answer abc but am stuck with d! A) t: 0.036s b) delta P : 139kg.m/s2 F: -3858N c) m : 393.7 no we can't ! D) ????? 2 ) If you jump off a table as your feet hit the floor let your legs bend at the knees explain why.5) a) 35g bullet Strikes at 5 kg stationary wooden block and embeds itself in the block the block and the Bullet fly out together at 8.6 m/s what was the original velocity of the bullet? 6) a 0.50kg ball traveling at 6m/s collides head on with a 1kg ball moving in the opposite direction at a velocity of -12m/s . The 0.50 ball Moves away at -14.0 m/s up aftet the collosion find the velocity of the second ball. Please THERE IS A LOT OF QUETIONS BUT THESE ARE THE ONES I DON'T GET!HELP
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