1. How does multiplying a vector by a scalar value of -7r change the vector? (l

Question

1. How does multiplying a vector by a scalar value of -7r change the vector? (l point) 4 The vector will change direction and increase in magnitude. OThe vector will change direction and decrease in magnitude. The vector will not change direction but will increase in magnitude. The vector will not change direction but)will decrease in magnitude. 2. A 5-lb. force acting in the direction of (5.-3) moves an object just over 12 ft. from point )to (7,-4). Find the work done to move the object to the nearest foot-pound. O11 ft. lbs. ( 34 ft.lbs. O56 ft. lbs. O61 ft. .lbs. 0

Explanation / Answer

vector multiplied with a scalar will always result in a vector.
multiply by a negative scalar will change the direction of a vector
so vector will change the direction and the magnitude gets decrease as pi/4 is less than 1
hence option B is correct

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