A clerk can lift containers a vertical distance of 1 meter or can roll them up a 3 meter-long ramp to the same elevation. With the ramp, the applied force required is:

a. The same.
b. Half as much.
c. Twice as much.
d. Four times as much.
e. None of the above

(e) none of the above

Explanation:

work done is the product of applied force and vertical distance.

work done = Fd

F₁d₁ = F₂d₂

given;

vertical distance a clerk can lift containers , d₁ = 1 m

vertical distance rolled along a ramp, d₂ = 3 m

substitute these values in the above equation;

Therefore, the applied force is one-third the original value.

The correct option is (e) none of the above.

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force