Mass will remain unchanged, always. His weight, which is the gravitational force acting on that mass will be less in this case.
Period is 1/frequency
1/425 = 2.353ms
Answer:
I would agree with the statement. it's not just the body, but everything that we see is almost 99.9999% empty space
By definition of average acceleration,
<em>a</em> = (20 m/s - 33.1 m/s) / (4.7 s) ≈ -2.78 m/s²
Vertically, the car is in equilibrium, so the net force is equal to the friction force in the direction opposite the car's motion:
∑ <em>F</em> = (1502.7 kg) (-2.78 m/s²) ≈ -4188.38 N ≈ -4200 N
If you just want the magnitude, drop the negative sign.
