You are sitting in a sled, at rest on a pond covered with nice, thick, frictionless ice. Your own mass is 73.7 kg, and the mass of the sled when empty is 11.7 kg. From shore, someone throws a baseball of mass 0.196 kg to you, and you catch it; the horizontal component of the ball s velocity is 30.6 m/s. What will be the sled s (and your) speed with respect to the surface of the pond after you catch the ball? 8.12 cm/s 50.4 cm/s 5.61 cm/s 7.01 cm/s

Three asteroids coated with cosmic slime are moving in the same plane when they collide and stick together. Initially, asteroid A has a mass of 2*107 kg and is moving to the right at a speed of 150 m/s, asteroid B has a mass of 3*107 kg and is moving at 50 m/s towards the lower left at an angle of 60 degrees with respect to asteroid A, while asteroid C has a mass of 5*107 kg and is moving with an unknown speed and angle. After the collision, the resulting single asteroid is moving toward the right at a speed of 50 m/s. Determine the speed and angle of asteroid C prior to the collision.

hawkeye shoots an arrow with a mass 35g. the force on the arrow as it is shot through the 25 cm bow is 140f (N) and 0.25 d(m). what is the velocity of the arrow as it leaves the bow

An astronaut floating at rest in space has run out of fuel in her jetpack. She realizes that throwing tools from her toolkit in the opposite direction will help propel her back toward the space station. If the astronaut has a mass of 85 kg and she throws a hammer of mass 4.5 kg at a speed of 4 m/s, what will be the approximate resultant velocity that carries her back to the space station?