A 90. kg person is sitting in a boat at rest with a mass of 100 kg. In the boat is a stone with a mass of 5.00 kg. The person throws the stone at 4.00 m/s horizontally in the NORTH direction. The velocity of the person and the boat after the throwing of the stone is
A. 2.00 m/s NORTH.
B. 1.21 m/s SOUTH.
C. 1.21 m/s NORTH.
D. 0.11 m/s SOUTH.
E. 0.11 m/s NORTH.
D. 0.11 m/s SOUTH.
You might also like to view...
Explain why stars more massive than the Sun live shorter main sequence lives than stars less massive than the Sun, despite having more fuel available for nuclear reactions
What will be an ideal response?
Cart A, of mass m, starts from rest and travels in a straight line with acceleration a. It reaches velocity v in time t. Cart B, of mass 4m, starts from rest and travels in a straight line with acceleration 
. At time t it has reached velocity
A.
.B.
.C.
D.
E.
A steel with a small grain size has a _________yield strength than the same steel with a larger grain size.
Fill in the blank(s) with the appropriate word(s).
The radius of the Sun is 6.95 × 108 m. It radiates heat at the rate of 5.32 x 1026 W. Assuming that it is a perfect emitter, what is the temperature of the surface of the Sun? The Stefan-Boltzmann constant is 5.67 x 10-8 W/(m2•K4)
A) 6.27 × 103 K B) 8.25 × 103 K C) 8.87 × 103 K D) 3.93 × 107 K E) 5.78 × 107 K