Tutorial no 2.pdf - Tutorial no 2 1 A 5 m long ladder leans against a frictionless wall The point of contact between the ladder and the wall is 4 m

# Tutorial no 2.pdf - Tutorial no 2 1 A 5 m long ladder leans...

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1 Tutorial no 2 1. A 5 m long ladder leans against a frictionless wall. The point of contact between the ladder and the wall is 4 m above the ground. The ladder is uniform with a mass of 12 kg. Determine the forces exerted by the ground and wall on the ladder. 2. A child of mass m rides on an irregularly curved slide height h= 2.00 m as shown in figure below. The child starts from rest at the top. Determine his speed at the bottom, assuming no friction is present. If a force of kinetic friction acts on the child, how much mechanical energy does the system lose? Assume that v
2 3. A 1200 kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 9000 kg truck moving in the same direction at 20.0 m/s (see figure below). The velocity of the car right after the collision is 18.0 m/s to the east. . What is the velocity of the truck right after the collision? How much mechanical energy is lost in the collision? Account for this loss in