James and Ramon are standing 20.0 m apart on the slippery surface of a frozen pond. Ramon has mass 66.0 kg and James has mass 100 kg. Midway between the two men a mug of their favorite beverage sits on the ice. They pull on the ends of a light rope that is stretched between them. Ramon pulls on the rope to give himself a speed of 0.55 m/s .
What is James’ speed?
This is a conservation of momentum problem
Initial momentum = 0 since no one is moving
Final momentum of Ramon = 66.0 * 0.55
Final momentum of James = 100 * vf
100 * vf + 66 * 0.55 = 0
vf = 0.363 m/s
what’s the purpose for attempting to soften the ice speedier? in case you certainly need to get rid of it for some reason, commence on the sting of the pond the place that’s plenty thinner and flow back to reducing or applying a sledge hammer. as quickly as the air and the sunlight can get to lots of the water below, the temperature of the water will start to upward push and the ice will soften a splash speedier. you additionally can take some thing this is black and cover the ice, the darker the colour the greater warmth it is going to charm to from the sunlight. The lighter the colour the greater the warmth is pondered from the floor.
equal and opposite forces gives them equal and opposite momentum
66 x 0.55 = 100 x v
v = 66 x 0.55/100 = 0.33m/s