A ball travels to Isan at 4.62 m/s. Isan kicks the ball with a force of 32.6 N for a duration of 1.243 s, resulting in the ball moving at 20.57 m/s. Compute the momentum of a car with a mass of 690 kg and a velocity of 135 m/s.

31. What is the momentum (as a function of time) of a 5.0-kg particle moving with a velocity v(t) = (2.0î +4.0t ĵ) m/s? What is the net force acting on this particle? Solution (10:01. ...: laž looard?

Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 0.8 m/s and a mass of 0.35 kg. Cart 2 has a mass of 0.71 kg. (a) If the total momentum of the system is to be zero, what is the initial speed of Cart 2 in meters per second? m/s Enter a number. (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is zero? Yes No (c) Determine the system's kinetic energy in joules in order to substantiate your answer to part (b). Can you write an expression for the total kinetic energy of the system (both carts)? J

Betty (mass 35 kg) stands on an ice rink as Bubbles (her hyperactive puppy, mass 8.6 kg)) runs towards her and leaps into her arms. If they move off together with a speed of 0.76 m/s, how fast (in m/s) was Bubbles moving when Betty caught her?