Answer:
Total time = 10.667 seconds
Explanation:
For the first 12m
V² = u² + 2as
10.5² = 0² + 2a(12)
110.25 = 24a
a = 4.59375 m/s²
V = u + at
10.5 = 0 + 4.59375t
t = 10.5/4.59375
t = 2.286 seconds
For the remaining race
100-12 = 88m
He travels at a constant speed for 88m
S = ut + 1/2(at²)
But a = 0
S = ut
88= 10.5t
t = 88/10.5
t = 8.38.seconds
Total time = 2.286 + 8.381
Total time = 10.667 seconds
Hey! I just started AP Physics 1 as well.
Lets break it down:
Displacement is the change in the position of a vector.
Net means total
This means that Net displacement means the addition of displacements. Also said as the "vector sum of the individual displacements".
This is all I know. Good luck!
Answer:
Explanation:
Explain how a projectile might be modified to decrease the air resistance impacting its trajectory.
The Density Calculator uses the formula p=m/V, or density (p) is equal to mass (m) divided by volume (V). The calculator can use any two of the values to calculate the third. Density is defined as mass per unit volume.
question answered by
(jacemorris04)
