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...

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...

Bill forgets to put his car in park, and it starts rolling forward. When it is moving at a speed of 2 m/s, it collides with Tanya's car, which is moving 3 m/s backward. Bill's car bounces backward...

At a race track, a car of mass 1150 kg crashes into a concrete wall at a speed of 85 m/s. a. The car crashes into the wall, stopping in 0.1 seconds. What force is applied to the car...

the position vectors of two point like object of mass 100kg and 200kg are (2,4,6)m and (3,5,7)m respectively.Find the moment of inertia of the system about Y- axis

How is momentum conserved in a collision? Explain using words, calculations, or both as well as physics terms.

I found the momentum (20,000 ns) the other things the question asks is: if this car takes 15 sec to stop, what is the average braking force? what is the time rate of change...

8.) A 1500-kg automobile, traveling at 5.0 m/s after braking, strikes a power pole and comes to a full stop in 0.1 s. Calculate the force exerted by the power pole and brakes required to stop the...

In a car crash, a 50 kg passenger moving at 15 m/s is stopped by an air bag in 0.10 sec. What is the average force the air bag exerts on the passenger? Show work or explain concept...

In a car crash, an air bag exerts -1000 N of force on a 46 kg passenger. The passenger comes to a rest in 0.15 sec. How fast was the passenger moving before the crash? Show work please...

A vehicle with a momentum of 6000 kg*m/s strikes a stationary vehicle. What is the momentum of two vehicles as they move off together after the collision? using physics terms please.

Two 1-kg carts are each moving toward each other at 2 m/s. They collide and each reverses directions, moving in the opposite directions at 2 m/s. Draw a diagram showing the carts before and after...

Ball A of mass 5 kilograms moving at 20 meters per second collides with ball B of unknown mass moving at 10 meters per second in the same direction. Which ball has more momentum before...

Ball A of mass 5 kilograms moving at 20 meters per second collides with ball B of unknown mass moving at 10 meters per second in the same direction. When is total momentum greatest...

An attack helicopter is equipped with a 20- mm cannon that fires 129 g shells in the forward direction with a muzzle speed of 1030 m/s. The fully loaded helicopter has a mass of 3170...

How would the designers of the helmets make use of the concept of impulse to improve their effectiveness? Explain using physics terms please.

What is the car's velocity after 2.50s? How far does the car move during 2.50s?

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