Using the alternate form of Newton's second law, compute the force (in N) needed to accelerate a 1,170 kg car from 0 to 16 m/s in 20 s. The change in momentum is the car's momentum when traveling 16 m/s minus its momentum when going 0 m/s. (Enter the magnitude.)

When an object's speed doubles, its momentum changes by a factor of _____, and its kinetic energy changes by a factor of ______ .

An object has a kinetic energy of 310 J and a momentum of magnitude 28.1 kg · m/s. (a) Find the speed of the object.(b) Find the mass of the object.

An object is traveling such that it has a momentum of magnitude 22.2 kg · m/s and a kinetic energy of 242 J. Determine the following. (a) speed of the object in meters per second m/s (b) mass of the object in kilograms kg

When the mass of an object moving at a constant speed doubles, its momentum changes by a factor of _______, and its kinetic energy changes by a factor of _______.

Part 1: an object is moving so that its kinetic energy is 189J and the magnitude of its momentum is 32.9kg•m/s. Determine the speed of the object. Answer in units of m/s Part 2: Determine the mass of the object. Answer in units of kg

What is the force of a 35 kg object that falls from the sky and hits the ground, without air resistance? What is the momentum of a 12 kg dog that is moving at a velocity of 8 m/s? What is the weight of a whale shark that has a mass of 18,000 kg? [REMEMBER: weight and mass are NOT the same!!!] What is the acceleration of a racecar that is slowing down to a stop from 300 km/h to rest over 30 minutes? How far is a car traveling north if it’s velocity is 55 mi/h and it is making a 12 hour trip? What is the acceleration of an object that exerts a force of 1200 newtons with a mass of 40 kg? What is the mass of an object traveling 120 m/s that has a momentum of 60 kg*m/s? How long would it take a person to run 26 miles if they were running at an average speed of 5.5 mi/h? What is the mass of a cargo ship that weighs 1,960,000,000 newtons? What is the final velocity of a dolphin that starts at a velocity of 1.5 m/s and accelerates at a rate of 0.1 m/s2 over 2 minutes? An object has a momentum…

A cannon of mass M fires a projectile of mass m.  The energy liberated in firing is E. Assume the projectile is discharged horizontally and that the cannon is mounted on wheels of a negligible mass. Using the fact that the energy E is taken up by both cannon and projectile and that momentum is conserved in the firing, do the following: A) Find the velocity of the projectile in terms of the masses and the energy E. B) By writing the velocity of the recoiling cannon in terms of the velocity of the projectile, find a relationship between the energy liberated, E, and the energy of the projectile. C) Explain what happens as M gets very large compared to m.

An object  is traveling in the negitve x-direction with 7.87 kg m/s of momentum and 36.3 J of kinetic energy. What is the object's mass?

Suppose a 1850 kg elephant is charging a hunter at a speed of 6.5 m/s.How many times larger is the elephant's momentum than the momentum of a 0.0315-kg tranquilizer dart fired at a speed of 295 m/s? What is the momentum, in kilogram meters per second, of the 77.5-kg hunter running at 4.75 m/s after missing the elephant?