1. Suppose that a heavy person and a lightperson are balanced on a teeter-totter

Question

1. Suppose that a heavy person and a lightperson are balanced on a teeter-totter made of a plank of wood.Each person now moves toward the fulcrum a distance of 25 cms. Whateffect will this have on the balance of theteeter-totter?

A) The heavy person's end will go down

B) The teeter-totter will remain in balance

C) The light person's end will go down

D) One cannot tell whether either end will rise or fallwithout knowing the relative mass of the plank

E) Only if the plank has significant mass will the lightperson's end go down

2. The tires of a car support the weight of a stationarycar. If one tire has a slow leak, the air pressure within the tirewill _______ with time, the surface area between the tire and theroad will _______ in time and the net force the tire exerts on theroad will _______ in time.

a) decrease, increase, decrease

b) decrease, increase, remain constant

c) decrease, increase, increase

d) increase, increase, increase

a. It goes up.

b. It goesdown.

c. It does notchange.

d. Impossible todetermine from the information given.

Thank you so much for all of your help~~~

Explanation / Answer

1) C- The light person's end will go down.

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