An old Chrysler with mass 2400 kg is moving along a straight stretch of road at 80 km/h. It is followed by a Ford with mass 1600 kg moving at 60 km/h. How fast is the center of mass of the two cars moving?

Q: A 1.80-kg particle has a velocity (1.60 î – 3.50 ĵ) m/s, and a 4.50-kg particle has a velocity (1.00…

A: mass of first particle (m) = 1.80 kg Velocity of first particle (u) = 1.60i^ - 3.50j^ msmass of…

Q: You are holding a basketball and standing at rest on top of a skateboard. If you throw the…

A: Initially, as both the person and the basketball were at rest, so the initial momentum of the system…

Q: During hockey practice, two pucks are sliding across the ice in the same direction. At one instant,…

A: mass of  first puck = m1= 0.18 kg mass of  second puck = m2= 0.14 kg initial velocity of puck 1 =…

Q: One ball of mass 0.600 kg traveling 9.00 m/s to the right collides head on elastically with a second…

A: The initial relative velocity and final relative velocity of the system is constant in the elastic…

Q: A uniform piece of sheet metal is shaped as shown in the figure below. Compute the x and y…

A: The x co-ordinate of center of mass is

Q: Three skydivers are plummeting earthward. They are initially holding onto each other, but then push…

A: Since initially, the skydivers plummet earthward, that is, the motion is vertically downward, their…

Q: On a very muddy football field, a 120 kg linebacker tackles an 80 kg halfback. Immediately before…

A:

Q: A car of mass 850 kg moves with a speed of 32 m/s and collides head on with a truck of mass 1300 kg…

A: in this question  we use conservation law of momentum.

Q: In a football game, 123.5 kg linebacker moving west at 0.95 m/s tackles an 86.4 kg running back…

A: Given data: The mass of linebacker player is m1=123.5 kg. The mass of running back player is…

Q: A 2x103 g metal sphere makes an elastic collision with another metal sphere at rest and continues to…

A: Collisions are of 2 types which are elastic and inelastic. Kinetic energy is conserved in elastic…

Q: Two ice skaters, with masses of 75 kg and 55 kg, stand facing each other on a 15-m-wide frozen…

A: Given data Initially, both the skaters are at rest

Q: During a spacewalk, a 118 kg astronaut (including her spacesuit) is at rest and holding a 3.5 kg…

A: Consider the mass of astronaut be m1, the mass of the wrench be m2, the initial speed of the…

Q: Two trucks of equal mass collide at a 90° intersection. If the momentum of truck A is 9.50x104 kg…

A: Given that:- pA=9.5×104 kg.km/h (East)pB=1.05×105 kg.km/h (North)m=mass of each truck

Q: Two carts of mass 0.65 kg and 1.50 kg are moving on a level air track with velocities -1.60 m/s and…

A: Given, mass of the cart, m1 = 0.65 kgm2 = 1.50 kgv1 = -1.60 msv2 = +0.85 ms

Q: A system consists of four particles located as shown. Find the x and y coordinates of the center of…

A:

Q: A car of mass 1000.0 kg moving at 20.0 m/s collides with a 5000.0 kg truck at the initial velocity…

A: Given, mass of the car, m = 1000.0 kg velocity of the car before collision, u1 = 20.0 m/s mass of…

Q: A 2.30-kg particle has a velocity (2.20 î − 4.50 ĵ) m/s, and a 3.50-kg particle has a velocity (1.00…

A: Given,

Q: At the instant a 2.0-kg particle has a velocity of 4.0 m/s in thepositive x direction, a 3.0-kg…

A: x-coordinate of speed of centre of mass will be,

Q: A uniform square plate 6.6 m on a side has had a square piece 5.0 m on a side cut out of it. The…

A: Let λ be the mass per unit area. Consider complete square as c, little square as l, and remaining…

Q: A 5000kg truck starting from rest, reaches a velocity of 85km/h. If the truck is moving in the south…

A: Given that the mass of the truck and initial velocity and also given the final velocity.Then We have…

Q: Three 70-kg deer are standing on a flat 200-kg rock that is on an ice-covered pond. A gunshot goes…

A:

Q: Two ice skaters, initially at rest, push off each other in opposite directions. The skater labeled…

A:

Q: Two ice skaters suddenly push off against one another starting from a stationary position. The 45-kg…

A: Given:            mass m1 = 45kg            mass m2 = 60kg               v1         = 0.375m/s…

Q: A century-old platter falls vertically downward. Upon breaking, its fragments fly off parallel to…

A:

Q: A 100-g firecracker is launched vertically into the air and explodes into two pieces at the peak of…

A: The final momentum will be, mfv=m1v1+m2v2v2=mfv-m1v1m2

Q: Four objects are situated along the y axis as follows: a 2.00-kg object is at +3.00 m, a 3.00-kg…

A:

Q: A uniform square plate 6. m on a side has had a square piece 2. m on a side cut out of it (see the…

A:

Q: A 2200-kg auto moving northward at 12.0 m/s runs into a 3800-kg truck which is also moving…

A: mass of auto (m) = 2200 kg initial velocity of auto (u) = 12 ms , due north mass of truck (M) = 3800…

Q: A diver with a mass of 80 kg jumps from a dock into a 130 kg boat at rest on the west side of the…

A: Applying the conservation of angular momentum,

Q: A 4900 kg open train car is rolling on frictionless rails at 18.6 m/s when it starts pouring rain. A…

A:

Q: 2. Two small-sized objects are placed on a uniform 9.00 kg plastic beam 3.00 m long, as shown in…

A: (given) m1=8 kgm2=7.50 kgM = 9 kgL = 3 mLocation of centre of mass is given byxcm =…

Q: John’s mass is 87.7 kg, and Barbara’s is 59.9 kg. He is standing on the x axis at xJ = +10.3 m,…

A:

Q: Two students are playing paddle ball with a 5 kg spongy ball. If the ball is thrown at the batter…

A: Given data: m = 5 kg v=-10 m/s u=5 m/s Need to determine the magnitude of the impulse imparted on…

Q: In a football game, 100.5 kg linebacker moving west at 0.67 m/s tackles an 85.0 kg running back…

A:

Q: A 100 kg man and 50 kg woman on ice skaters stand facing each other. If the woman pushes the man…

A: