Bill and janet are pulling on opposite sides of a table. bill pulls with a force of
450 n to the left, and janet pulls with a force of 300 n to the right. what is
the net force on the table?
o
a. 450 n to the right
o
b. 450 n to the left
c. 150 n to the left
o
d. 150 n to the right

C. 150 N to the left

Explanation:

If we take right to be positive and left to be negative, then:

∑F = -450 N + 300 N

∑F = -150 N

The net force is 150 N to the left.

(C) 150 N to the left

Explanation:

It is given that,

Force acting in left side, F = 450 N

Force acting in right side, F' = 300 N

Let left side is taken to be negative while right side is taken to be positive. So,

F = -450 N

F' = +300 N

The net force will act in the direction where the magnitude of force is maximum. Net force is given by :

So, the net force on the table is 150 N and it is acting to the left side. Hence, the correct option is (c).

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

3.2x10^7