An toy car of mass 2.70 kg is moving in a straight line at 3.50 m/s. It collides with a stationary stuffed animal of mass 1.00 kg and the two toys begin travelling together. What is their final speed?

The horizontal distance to collision is 8242.96 m. The time of collision is 10.487 sec. What is A in m/s^2

When a particle decays, it splits into two different particles and each is shot off in opposite direction. The speed of each particle is such that momentum is conserved. uranium 238 decays into thorium 234 by emitting an alpha particle (helium 4). If the alpha particle leaves with a speed of 6.8 x 10^3 m/s, what is the speed of the thorium atom? Give your answer in m/s to three significant figures. Use atomic mass units for the mass of each particle. Uranium 238 in atomic mass units is 238 to three significant figures.

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

A uranium nucleus (mass 238 units) at rest decays into helium nucleus (mass 4.0 units) and thorium nucleus (mass 234 units). If the speed of the helium nucleus is 6.0 x 10^5 m/s, what is the speed of the thorium nucleus?

1. An object with mass m=1.18 kg has momentum p=7.50 kg. m/s. What is the object's kinetic energy (in Joules)? 2. An object's undergoes a change in momentum from pi=-6.77 kg m/s to pf=8.31 kg • m/s over a timeframe of (delta)t=1.28 s. Find the average force (in N) on the ball.

A block of mass m1 = 2.7 kg moving with a speed of 12.9 m/s collides with a second block of mass m2=5 kg that is at rest. After the collision the two blocks are observed to move together with a common speed. Find the speed of the blocks after the collision in units of m/s and round your answer to one decimal place.

A particle with kinetic energy equal to 269 J has a momentum of magnitude 28.9 kg · m/s. Calculate the speed (in m/s) and the mass (in kg) of the particle. speed: ____ m/s mass: ____kg

A force of 10.12 N acts on a mass changing its momentum by 38.54 kg m/s.  What is the time during which the force is in contact with the mass?

A force of 33.5 N acts on a mass changing its momentum by 43.13 kg m/s.  What is the time during which the force is in contact with the mass?