isn't velocity 0 when the diver hits the water? velocity changes are caused by force according to Newton's 1st law. sooo the force of the water changes the velocity? i still don't get how to find the force the water exerts if i only have the mass :(
1. a 10 kg diver dives into a pool. what is the average force the water exerts on the man?
2. W= Fnet * \Deltar
KE= 1/2 mv2
W= F \Deltar cos\theta
3. W= F\Deltar cos\theta
W= -Fwaterd
do i have enough info?
how do you solve a problem like this? a diver jumps into the water. what is the force exerted by the water? we are only given the mass of the diver
i know it has to do with energy (gravitational and potential?), but i don't know how to do it.
I drew a line of action through the point of application (the pulley at the top) and a lever arm.
lever arm = r sin 5 = 12.2m * sin 5 = 1.063m
1.063m * 67 kN = 71.24 kN*m
That's my work, but I don't know if I did it right. I'm not sure I drew the line of action right because I don't know...
1. The 12.2m crane weighs 18 kN and is lifting a 67-kN load. The hoisting cable (tension T1) passes over a pulley at the top of the crane and attaches to an electric winch in the cab. THe pendant cable (tension T2), which supports the crane, is fixed to the top of the crane. Find the tensions in...