Please help me 100 points for correct answers, answers without context will be reported 1. In the situation below, a tractor pulls the 850-kg sled along a ramp of height ℎ = 1 m and slope of θ = 30 °. If the tractor applies constant force on the sled T = 6750 N at an angle φ = 36.9 °, determine the total work done by all forces on the sled to move it along the ramp. The coefficient of kinetic friction between the sled and the plane is u = 0.3. Hint: For the calculation, remember that only the components of the forces parallel to the direction of travel contribute to the work. Disregard the dimensions of the sled.

2) When firing a 2 projectile at a 1.4 block, initially at rest, it is observed that the projectile wedges into the block and the system moves together for a distance = 0.1 before stopping. If the coefficient of kinetic friction between the block and the surface is = 0.25, determine what the velocity of the projectile was at the instant before impact. Hint: here you should use the conservation of linear momentum and also of energy, considering the work done by the frictional force.