A 3.50 g bullet has a muzzle velocity of 250 m/s when fired by a rifle with a weight of 40.0 N. (a) Determine the recoil speed (in m/s) of the rifle. (b) If a marksman with a weight of 650 N holds the rifle firmly against his shoulder, determine the recoil speed (in m/s) of the shooter and rifle.

A man in a rowboat on a lake. The man's mass is 67 kg, and the rowboat's is 117 kg. The man and rowboat are initially at rest when the man throws a package of mass m = 15 kg horizontally to the right with a speed of vi = 4.0 m/s. What is the velocity of the rowboat after the package is thrown? Neglect any resistance force from the water. (Give the magnitude in m/s, and select the correct direction from the options given.)   magnitude m/s direction      - toward the right - toward the left - downwards -upwards

A frog is sitting on a lily pad when it sees a delicious fly. He darts out his tongue at a speed of 3.40 m/s to catch the fly. The tongue has a mass of 0.410 g, and the rest of the frog plus the lily pad have a mass of 12.5 g. What is the recoil speed of the frog and the lily pad? Ignore drag forces on the pad due to the water.

A 48.1-kg person, running horizontally with a velocity of +3.23 m/s, jumps onto a 16.8-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. (b) The sled and person coast 30.0 m on level snow before coming to rest. What is the coefficient of kinetic friction between the sled and the snow? (a) Number i (b) Number i Save for Later Units Units Attempts: 1 of 3 used Submit Answer

A rifle with a weight of 40 N fires a 5.5-g bullet with a speed of 210 m/s. (a) Find the recoil speed of the rifle. _______m/s (b) If a 625-N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle. _______m/s

The fisherman's mass is 70 kg, and the rowboat's is 119 kg. The fisherman and rowboat are initially at rest when the fisherman throws a package of mass m = 15 kg horizontally to the right with a speed of vi = 4.7 m/s. What is the velocity of the rowboat after the package is thrown? Neglect any resistance force from the water. (Give the magnitude in m/s, and select the correct direction from the options given.) A fisherman in a rowboat throws a package of mass m to the right with velocity vector vi. magnitude                       m/s toward what direction

Hello, can you also please include the formula that you used to solve this problem? Thank you!

A 90.0 kg fullback running 36.9° north of east with a speed of 5.00 m/s is tackled and held onto by an 60.4 kg opponent running north with a speed of 5.34 m/s. What is the magnitude of the velocity of the players immediately after the tackle?

A 42.3-kg person, running horizontally with a velocity of +2.09 m/s, jumps onto a 17.5-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. (b) The sled and person coast 30.0 m on level snow before coming to rest. What is the coefficient of kinetic friction between the sled and the snow? (a) Number i (b) Number i Save for Later Units Units Attempts: 2 of 3 used Submit Answer

A 4.00 g bullet has a muzzle velocity of 290 m/s when fired by a rifle with a weight of 35.0 N. (a)Determine the recoil speed (in m/s) of the rifle.  Answer________m/s   (b) If a marksman with a weight of 800 N holds the rifle firmly against his shoulder, determine the recoil speed (in m/s) of the shooter and rifle.  Answer________ m/s