A 15.0 kg fish swimming at 1.10 m/s suddenly gobbles up a 4.50 kg fish that is initially stationary. Neglect any drag effects of water. (a) find the speed of the large fish just after it eats the small one. (b) how much mechanical energy dissipated during this meal.

A car’s bumper is designed to withstand a 4.0-km/h (1.1-m/s) collision with an immovable object without damaging the body of the car. The bumper cushions the shock by absorbing the force over a distance a.  Calculate the magnitude of the average force on a bumper that collapses 0.195 m while bringing a 875-kg car to rest from an initial speed of 0.85 m/s, in newtons.

Current Attempt in Progress A 49.4-g golf ball is driven from the tee with an initial speed of 56.1 m/s and rises to a height of 20.0 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 8.14 m below its highest point? (a) Number i (b) Number i Units Units ◆

After coming down a slope, a 60-kg skier is coasting northward on a level, snowy surface at a constant 15 m/s. Her 5.0-kg cat, initially running southward at 3.8 m/s, leaps into her arms, and she catches it. (a) Determine the amount of kinetic energy converted to internal energy in the Earth reference frame. (b) What is the velocity, measured in the Earth reference frame, of an inertial reference frame in which the cat's kinetic energy does not change?..

Problem 4: During an ice show, a 67.5-kg skater leaps into the air and is caught by an initially stationary 82.5 kg skater. Part (a) What is their final speed, in meters per second, assuming negligible friction and that the 67.5 kg skater's initial horizontal speed is 4.25 m/s? Numeric : A numeric value is expected and not an expression. v'= Part (b) How much kinetic energy is lost, in joules? Numeric : A numeric value is expected and not an expression. ΔΚΕ10st Ξ

A car's bumper is designed to withstand a 4.0-km/h (1.1-m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force on a bumper that collapses 0.200 m while bringing a 900-kg car to rest from an initial speed of 1.1 m/s.

Puck B has five times the mass of puck A. Starting from rest, both pucks are pulled the same distance across frictionless ice by strings with the same tension.

A car's bumper is designed to withstand a 5.76 km/h (1.6-m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force on a bumper that collapses 0.210 m while bringing a 890 kg car to rest from an initial speed of 1.6 m/s.

A 480-kg car moving at 16.4 m/s hits from behind a 570-kg car movingat 13.3 m/s in the same direction. If the new speed of the heavier car is 14.0 m/s,(a) what is the speed of the lighter car after the collision, assuming that anyunbalanced forces on the system are negligibly small, and(b) what average power is dissipated during the collision if they collide for 1.4seconds?

A car's bumper is designed to withstand a 6.48 km/h (1.8 m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force (in N) on a bumper that collapses 0.255 m while bringing a 850 kg car to rest from an initial speed of 1.8 m/s.