The stoplight had just changed and a 2100 kg Cadillac had entered the intersection, heading north at 2.8 m/s, when it was struck by a 1200 kg eastbound Volkswagen. The cars stuck together and slid to a halt, leaving skid marks angled 35∘ north of east. How fast was the Volkswagen going just before the impact?

Problems 1. A 3.7kg Superball hits the floor with a speed of 6m/s, and it bounces back up into the air with a speed of 4m/s. If the collision takes 0.03s, what is the average normal force of the floor on the ball? You can use the table but you don't have to. 12112 Pf Y •

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A 75.5 kg linebacker (X) is running at 6.35 m/s directly toward the sideline of a football field. He tackles a 87.8 kg running back (0) moving at 9.05 m/s straight toward the goal line, perpendicular to the original direction of the linebacker. As a result of the collision, both players momentarily leave the ground and go out-of-bounds at an angle o relative to the sideline, as shown in the diagrams. Before impact After impact What is the common speed vf of the players immediately after their impact? Uf = m/s What is the angle ø of their motion relative to the sideline? ||

A 1263-kg sports car traveling at 40.0 km/h crashes head-on into a 1743-kg cab moving north at 90.0 km/h. If two cars remain tangled together but free to coast, describe their motion immediately after the collision.a) What is their final speed?b) How much kinetic energy is lost?

a mini cooper has mass of 105 kg, hits a tesla of 2200 kg.  The mini cooper is firstly moving an angle of 30o with respect to the x-axis at 10m/s and the tesla is moving in the positive x-direction (at 0o) at 5 m/s.  The 2 cars stick together after the crash. What is the final speed of the cooper and tesla?

a particle of mass .260kg moves head on with a velocity .534x+.374y m/s toward a second particle of mass .486 kg placed on a smooth horizontal table. here x and y are unit vectors along the x and y axis. the collison is completely inelastic. the energy lost in this collision is?

Two blocks of masses m, = 4.00 kg and m, = 8.00 kg are each released from rest at a height of 5.00 m on a frictionless track, as shown in the figure, and undergo an elastic head-on collision. Find the maximum height to which block m, rises after the collision. т т2 5.00 m 5.00 m

The stoplight had just changed and a 1,043 kg Cadillac had entered the intersection, heading north at 10 m/s, when it was struck by a 930 kg eastbound BMW. The cars stuck together and slid to a halt leaving skid marked angled 86 degrees north of east. How fast was the BMW going just before the impact?

The figure shows a two-ended "rocket" that is initially stationary on a frictionless floor, with its center at the origin of an x axis. The rocket consists of a central block C (of mass M-6.50 kg) and blocks L and R (each of mass m-1.20 kg) on the left and right sides. Sm explosions can shoot either of the side blocks away from block C and along the x axis. Here is the sequence: (1) At time t-0, block Lis shot to the left with a speed of 3.30 m/s relative to the velocity that the explosion gives the rest of the rocket. (2) Next, at timet -0.6 s, block R is shot to the right with a speed of 3.30 m/s relative to the velocity that block C then has (after the second explosion). At t -3.30 s, what are (a) the velocity of block C (including sign) and (b) the position of its center? (a) Number (b) Number Units Units