Aphysics professor is pushed up a ramp inclined upward at an angle 32.0° above the horizontal as she sits in her desk chair, which moves on frictionless rollers. the combined mass of the professor and chair is 86.0 kg . she is pushed a distance 2.30 m along the incline by a group of students who together exert a constant horizontal force (not parallel to the incline) of 599 n . dr. moreno's speed at the bottom of the ramp is 1.70 m/s. find velocity at the top of the ramp.

Explanation:

From work-energy theorem we got that:

(1)

If we see the free body diagram attached we can calculate the work done by the group of students by knowing its definition given by:

Where F is Force and s is distance

These are the forces at the x-axis that are causing the work done by the students

Now, we can calculate the velocity at the top of the ramp using (1)

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

hope this !

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.