Example 11-9 depicts the following scenario. a cat walks along a plank with mass m= 7.00 kg. the plank is supported by two sawhorses. the center of mass of the plank is a distance d1= 0.850 m to the left of sawhorse b.
when the cat is a distance d2= 1.11 m to the right of sawhorse b, the plank just begins to tip?

he made 11 calls in one day

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.