a basketball pitcher throw a 145 gram fastball at 90 mph if an average batter is able to make contact with the ball for 0.7 milliseconds

a basketball pitcher throw a 145 gram fastball at 90 mph if an average batter is able to make contact with the ball for 0.7 milliseconds

what is the momentum of a 70kg athlete jogging in a straight line on level ground at a speed of 6.0 m/s

a baseball pitcher throw a 145 gram fastball at 90 mph if an average batter is able to make contact with the ball for 0.7 milliseconds

if the cat glove moves back 10 cm while catching the ball how much force did the catcher have to use to stop the ball

If he was not wearing his seatbelt the windshield would stop bobs head in about 0.001 seconds. How much force would be exerted on bobs head

If an average batter is able to make contact with the ball for 0.7 milliseconds how much force would it take for the batter to hit the ball outward at 106 mph to hit a home run

After a 1.30 x 10^2kg astronaut (incl. equipment) connects a safety line (length = 22.0m) to herself and to the spacecraft (mass = 2.80 x 10^3kg), she pushes against the craft and moves away at a...

The mass of ball A is 10 kilograms and the mass of ball B is 5 kilograms. If the initial velocity is set to 3 meters per second for each ball, what is the final velocity of ball B if the final...

A rocket is standing by to launch. While sitting on the launching pad the rocket has zero velocity and thus zero initial momentum (p1=0). When the rocket takes off, a bystander proclaims that the...

a plastic sphere containing an explosive charge, rolling at 4 m/s undergoes a two dimensional explosion into 3 fragments of equal mass. when viewed from above, one fragment moves at 6 m/s at an angle...

A car (m=900kg) travelling at 70km/h hits a pedestrian (m=60kg) who is travelling at 1m/s in the same direction. After the collision the car has a velocity of 30km/h in the same direction it was originally...

I weigh 200lbs im holding a bottle that weighs 5lbs. I go to through the bottle at a velocity of 5mph at someone and at the last possible moment i change my mind and simply drop the bottle. How far...

A 3kg steel ball attached to a string is given an initial velocity of 1.8m/s and swings through an angle of 60 degrees, colliding with a 4kg steel cube also suspended by a string, initially at rest if...

A neutron of mass u traveling with a speed 5.00x105 m/s collides with a stationary alpha particle of mass 4u. The neutron scatters off the alpha particle at an angle 65˚ with...

A car has a momentum px(t) = 3000 N*s - (200 N*s^2)/(t+1.00s). Find the net force acting on the car at t = 4.00 s

Dwight uses a spring (k = 40 N/m) on a horizontal surface to make a launcher for model cars. The spring is attached to a holder that has a mass of 0.5 kg. If he compresses the spring and releases...

Mars has a mass of 6.4 × 1023 kg. It has a moon named Phobos with a mass of 1.07 × 1016 kg. a. If their centers are 9400 km apart, what is the force of gravity acting on Phobos? b...

Blake stands in a canoe in the middle of a lake. The canoe is stationary. Blake holds an anchor with mass 15 kg, then throws it west with a speed of 8 m/s. Blake has a mass of 115 kg and the canoe...

Lincoln goes bungee jumping. He has a mass of 102 kg. a. After his jump, Lincoln hangs from the cord motionless, with the cord stretched by 15 m. What is the spring constant of the bungee...

The period of motion for a pendulum is the amount of time it takes to swing from right to left and back to right again. The period is given by the equation , where T is the period and L is the length...