Practice 1. A person cutting a flat lawn pushes a lawnmower with a force of 125 N at an angle of 40.0° below the horizontal for 12.0 m. Determine the mechanical work done by the person on the lawnmower. [ans: 1.15 kJ] 2. A father pulls a child on a toboggan along a flat surface with a rope angled at 35.0° above the horizontal. The total mechanical work done by the father over a horizontal displacement of 500 m is 2410 | Determine the work done on the toboggan by the normal force and the

Pls help ASAP. Pls show all work and calculations and include units for final answers.

A small remote-control car with a mass of 1.53 kg moves at a constant speed of v = 12.0 m/s in a vertical circle inside a hollow metal cylinder that has a radius of 5.00 m Part A - (Figure 1) You may want to review (Page). What is the magnitude of the normal force exerted on the car by the walls of the cylinder at point A (at the bottom of the vertical circle)? For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Uniform circular Express your answer in newtons. motion in a vertical circle. ? \FAI = N Figure 1 of 1 В Submit Request Answer Request Answer v = 12.0 m/s Part B 5.00 m What is the magnitude of the normal force exerted on the car by the walls of the cylinder at point B (at the top of the vertical circle)? Express your answer in newtons. v =12.0 m/s A \FB| = N

Only need the solution to part e. Previous correct answers a.-5.41E-14C/m B.1.41E-3N/C C. 180 degrees d.8.81E-9N/C