A60 kg rower is paddling a 30 kg canoe with a 2 kg paddle at a constant speed of + 10 m/s. if she loses her grip on the paddle and it flies backward with a velocity of -20 m/s, what is the final momentum of the boat and rower?
a) +10 kg-m/s
b) +10.7 kg-m/s
c) +960 kg-m/s
d) +975.2 kg-m/s

Acylindrical specimen of a nickel alloy having an elastic modulus of 207 gpa (30 × 106psi) and an original diameter of 10.2 mm (0.40 in.) experiences only elastic deformation when a tensile load of 8900 n (2000 lbf) is applied. compute the maximum length of the specimen before deformation if the maximum allowable elongation is 0.25 mm (0.010 in.)

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p

Which of the following are appropriate acceleration units?