Ask Experts Questions for FREE Help !
Ask
    Jenesco1's Avatar
    Jenesco1 Posts: 4, Reputation: 1
    New Member
     
    #1

    Feb 21, 2011, 01:40 AM
    Momentum and Colissions. Question: stationary life raft of mass 160kg is carrying t
    A stationary life raft of mass 160kg is carrying two survivors with masses of 55kg and 72kg, respectively. They dive off the raft at the same instant, the 55kg person East at 4.4m/s and the 72kg person North at 4.2m/s. At what speed and in what direction does the raft start to move?

    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
    Uber Member
     
    #2

    Feb 21, 2011, 09:21 AM

    Consider the momenta of the divers separately first.

    Along the east-west direction, find the resultant velocity of the raft
    Same for along the north-south direction.

    Then, use vector addiction to add the velocities to get the final answer.

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Chemistry question about mass [ 1 Answers ]

0.325g sample of gaseous hydrocarbon (consists of carbon and hydrogen only), occupies A volume of 193mL at 749mmHg and 26.1ºC. Determine the molecular mass, and draw a plausible Lewis structure for this hydrocarbon My question about this question what is "a volume of 193mL at 749mmHg and...

Another physics question about mass and force [ 4 Answers ]

To move a large crate across a rough floor, you push on it with a force F at an angle of 21 degrees below the horizontal. Q.Find the force necessary to start the crate moving, given that the mass of the crate is 32 kg and the coefficient of static friction between the crate and the floor is...

Question on Momentum [ 2 Answers ]

A ball of mass m1, moving with speed v, collides with a stationary ball of mass m2. The first ball rebounds with speed 1/5 v, whereas the other moves off with speed 4/5 v in the direction of the original velocity of the first ball. 1. Use the conservation of momentum to show that (m1/m2) = 2/3

DSS in my life (Mass.) [ 11 Answers ]

My 16 year old adopted daughter, who has been with us 4 1/2 years and who has always been watched carefully by us due to previous issues of sexual abuse, neglect, promiscuity, sneaky behavior. etc. and who is very much functioning at the 12-13 year old level (IQ 86) and who is very literal in her...

Chemistry moles and mass question [ 3 Answers ]

this problem is kicking my butt cause we have multiple choice and I can't seem to get any of the posted answers... please help! A 0.0100-mol sample of urea, NH2CONH2, contains 4.82 x 1022 atoms. 4.82 x 1024 atoms. 6.02 x 1022 molecules. 4.82 x 1023 atoms. 6.02 x...


View more questions Search