12) 0.123
13) yes
14) Because you still must undergo deceleration to zero velocity in a very short time. Forces exerted upon you would be about the same but slightly less.
12)It is summertime and two boys cannot wait for winter. One boy exerts a 70N horizontal force as he pushes his 58 kg friend standing on a snowboard across a cement sidewalk at a constant speed. What is the coefficient of kinetic between the sidewalk and the snowboard? Ignore air resistance and the weight of the snowboard.
.12
13)The sign of the x component of a vector in the 3rd quadrant would be?
negative
14)The cable of the elevator you are riding in breaks and the elevator begins to freefall at terminal velocity to the ground. Why would jumping up right before impact still not help you survive?
b/c your overall inertia is down
3 answers
14) my choices are:
A)what I wrote
B)b/c you would be accelerating up
C)b/c you are weightless
D)it would help you survive
if the answer is in what you said, I don't get it
A)what I wrote
B)b/c you would be accelerating up
C)b/c you are weightless
D)it would help you survive
if the answer is in what you said, I don't get it
Because your overall inertia is down, or a 4 number 14
1 answer