A body has a momentum of 80 kg m/s and a kinetic energy of 275 J. Determine the mass of the body.

3. John is performing an experiment in a Uwindsor lab. In this lab, John has two toy car's of mass m1 and m2 connected together to form a car of mass m whose velocity is v. While traveling a force causes these car's to separate, with the heavier car being at rest as a result. If John notes the kinetic energy of the moving car is 28 mv 2 what is the mass of the moving car? А. 0.018m В. 5.1m C. 0.011m D. 0.028m Е. 0.11m

A pitcher claims he can throw a 0.142-kg baseball with as much momentum as a 2.88-g bullet moving with a speed of 1.50 ✕ 103 m/s. (a) What must the baseball's speed be if the pitcher's claim is valid?

The Tunguska meteor delivered 1.2E17 Joules of kinetic energy to the Earth’s atmosphere in an air-burst over Siberia in 1908. If its speed was 2.7E4 m/s, what would its mass have been?

At a particular instant, a moving object has a kinetic energy of 276 J and a momentum of magnitude 22.1 kg · m/s. (a)What is the speed (in m/s) of the object at this instant?   (b)What is the mass (in kg) of the object at this instant?

An atomic bomb moving at 100.0 m/s explodes releasing 2.70*10^17J of energy. How massive was the bomb before it exploded. a) 333 kg   b) 33.3 kg   c) 30.0 kg   d) 3.33 kg   e) 3.00 kg

this is a multi step problem but I am just having trouble with this part of the problem. Here are the values that I correctly calculated: mass of particle 1=6 kg initial velocity for particle 1= 185i+138j final velocity for particle 1= -68.89i+-50.67j I am trying to find: What is the change in kinetic energy for particle 1? I understand I have to use KT= 1/2*m*(vf2-vi2) but I keep getting the wrong answer can you please help?

Two rocks collide in outer space. Before the collision, one rock had mass 15 kg and velocity m/s. The other rock had mass 10 kg and velocity m/s. A 1 kg chunk of the first rock breaks off and sticks to the second rock. After the collision the 14 kg rock has velocity m/s. After the collision, what is the velocity of the other rock, whose mass is now 11 kg? Additional Materials eBook m/s

As shown in the figure below, a bullet is fired at and passes through a piece of target paper suspended by a massless string. The bullet has a mass m, a speed v before the collision with the target, a speed (0.526)v after passing through the target. DLAC (a) Before collision (b) After collision The collision is inelastic and during the collision, the amount of energy lost is equal to a fraction [(0.383)KE, Bc] of the kinetic energy of the bullet before the collision. Determine the mass M of the target and the speed V of the target the instant after the collision in terms of the mass m of the bullet and speed v of the bullet before the collision. (Express your answers to at least 3 decimals.) M

A 1.1 g particle has momentum 410,000 kg⋅m/s. What is the particle's speed in m/s? Express your answer in meters per second.