Author Question: To determine the location of the center of mass of a car, the car is driven over a scale on a ... (Read 60 times)

tichca · **on:** Jul 29, 2018

To determine the location of the center of mass of a car, the car is driven over a scale on a horizontal floor.

When the front wheels are over the scale, the weight recorded by the scale is 5800 N, and when the rear wheels are over the scale, the scale reads 6500 N. The distance between the front and rear wheels is measured to be 3.20 m. How far behind the front wheels is the center of mass located? A) 0.845 m
B) 1.50 m
C) 1.59 m
D) 1.69 m
E) 1.72 m

Question 2

In a ballistics test, a 28-g bullet pierces a sand bag that is thick.

If the initial bullet velocity was and it emerged from the sandbag moving at what was the magnitude of the friction force (assuming it to be constant) that the bullet experienced while it traveled through the bag? A) 130 N
B) 38 N
C) 13 N
D) 1.3 N