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

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?

Question 4: a. The position of a moving particle in vortex is expressed as,  x(t) = x0 sin(a√t +bt2) where x0 is the position at t = 0, x (t) is the position at time t, and a and b are the constants. Using dimensionalanalysis find the units of the constants a and b? b. A particle is moving along the x axis, and the graph shows its momentum p as a function of time t.Rank (largest to smallest) the regions according to the magnitude of the impulse applied to theparticle.

A 5.0 kg particle is moving with a velocity v(t) = (4.0î + 6.0tĵ) m/s. (Assume momentum is in kg · m/s, force is in newtons, and t is in seconds. Express your answers in vector form. Use the following as necessary: t. Do not include units in your answers.) What is the momentum (as a function of time) of this particle? What is the net force acting on this particle?

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.

Three objects A, B, and C are moving as shown in the figure below (Figure 1). Assume that A = 11.0 m/s, vB = 9.2 m/s, and vc = 4.0 m/s. Figure 5.0 kg B60° Vc. HA 6.0 kg 10.0 kg 1 of 1 > Find the x-component of the net momentum of the particles if we define the system to consist of A and C. Express your answer in kilogram meters per second. [ΠΙ ΑΣΦ ? Px = kg. m/s Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B Find the y-component of the net momentum of the particles if we define the system to consist of A and C. Express your answer in kilogram meters per second. OF [Π ΑΣΦ kg. m/s Request Answer Part C Find the x-component of the net momentum of the particles if we define the system to consist of B and C. Express your answer in kilogram meters per second. IVE ΑΣΦ ? kg. m/s Py = Submit Px =

A small spaceship whose mass is 2200 kg (including an astronaut) is drifting in outer space with negligible gravitational forces acting on it. If the astronaut turns on a 12 kW laser beam, what speed will the ship attain in 6.0 days because of the momentum carried away by the beam? Number i Units

Two cars are involved in a crash. (No one was hurt in the accident.) If the total momentum is 4120 kg•m/s after the collision, what is the total momentum before the collision?

A tennis ball of mass 57 g travels with velocity m/s toward a wall. After bouncing off the wall, the tennis ball is observed to be traveling with velocity m/s. (a) Draw a diagram showing the initial and final momentum of the tennis ball. This will help you answer the following questions. (b) What is the change in the momentum of the tennis ball? kg • m/s 45 = (c) What is the magnitude of the change of momentum of the tennis ball? |AP| = kg. m/s (d) What is the change in the magnitude of the tennis ball's momentum? AP kg. m/s Note that the magnitude of the change of the vector momentum is large, while the change in the magnitude of the momentum is small. =

O A 1,300-kg car is traveling at a speed of 10 m/s with respect to the ground when the driver accelerates to make a green light. The momentum of the car increases by 12,800 kg m/s. Draw a sketch showing the initial and final states of this scenario. List all the quantities you can determine using this information and determine three of those quantities.