A 2,950 kg truck jumps the median and clobbers a 660 kg station wagon in a head-on collision. You are tasked with determining the truck’s initial speed for insurance purposes. An observer states that the station wagon was traveling at a speed of 32.5 m/s and that after the collision, the two vehicles stuck together and were moving at a speed of 22.7 m/s in the direction the truck was originally moving. What was the truck’s original speed?

Bob and Tom take a sled weighing 10 N to a frozen pond. The sled is initially at rest on the ice. Bob who weighs 490 N runs at 2 metres per second and jumps on the sled. A few seconds later, Tom who weighs 540N runs at 4 metres per second and jumps on the sled with Bob. Keep all values to 3 decimal places. A)What is the velocity of the sled after Bob jumps on to it? B)What is the velocity of the sled after Tom jumps on it?

what momentum does a car of mass 1,762 kg have if its traveling at 11.3 m/s? answer in exponential form.

Three identical train cars, coupled together, are rolling east at speed v0v0. A fourth car traveling east at 2v0v0 catches up with the three and couples to make a four-car train. A moment later, the train cars hit a fifth car that was at rest on the tracks, and it couples to make a five-car train.What is the speed of the five-car train?

A 2210 kg car experiences an impulse of 20,000.0 N · s during a collision with a wall. If the collision takes 0.43 s, what was the velocity of the car just before the collision? 27 m/s 18 m/s 9 m/s 10 m/s 12 m/s

A 1500 kg object moving at 10 m/s collides with a brick wall and comes to a complete stop. If the collision time is 0.05 what was the average stopping force?

A 2,800 kg truck jumps the median and clobbers a 940 kg station wagon in a head-on collision. You are tasked with determining the truck's initial speed for insurance purposes. An observer states that the station wagon was traveling at a speed of 25.1 m/s and that after the collision, the two vehicles stuck together and were moving at a speed of 24.4 m/s in the direction the truck was originally moving. What was the truck's original speed?

The Hulk (200kg of pure angry muscle)collides head-on with a truck (2500kg). If the Hulk was running at 10.0m/s and the truck was moving at 15.0 m/s in the opposite direction, after they stick together, what is their speed (in m/s)? Either the Hulk or the truck needs a negative initial velocity.

During a car collision, the knee, thighbone, and hip can sustain a force no greater than 4000 NN. Forces that exceed this amount could cause dislocations or fractures. Assume that in a collision a knee stops when it hits the car's dashboard. Also assume that the mass of the body parts stopped by the knee is about 20% of the total body mass. The person with a mass of 90 kgkg is initially traveling at 18 m/sm/s (40 mi/hmi/h).  What minimum stopping time interval in needed to avoid injury to the knee?  What is the minimum stopping distance?

A 2,670 kg truck jumps the median and clobbers a 630 kg station wagon in a head-on collision. You are tasked with determining the truck’s initial speed for insurance purposes. An observer states that the station wagon was traveling at a speed of 25.1 m/s and that after the collision, the two vehicles stuck together and were moving at a speed of 23.2 m/s in the direction the truck was originally moving. What was the truck’s original speed?