If you were a ball sitting on a field and someone kicked you, a force would have acted on you. ... Those forces would include gravity, the force of air particles hitting your body from all directions (as well as from wind), and the force being exerted by the ground (called the normal force).
Answer:
You want your product to be as strong and as long lasting as possible. There are also the safety implications to consider. You see, dangerous failures arising from poor material selection are still an all too common occurrence in many industries.
Explanation:
Answer:
19 cm
Explanation:
The total distance is 9+4+6 = 19 cm
However, the DISPLACEMENT is -9+4-6 = -11 cm.
My guess is A. I'm not 100% positive but i'm pretty sure.
Answer:
a = 7.35 ft / s²
Explanation:
For this exercise we must use the kinematics relations
x = v₀ t + ½ a t²
as the runner leaves the starting line his initial velocity is zero
x = ½ a t²
a = 
let's reduce the distance to foot
x = 60 yd (3ft / 1yd) = 180 ft
let's calculate
a = 2 180 / 7²
a = 7.35 ft / s²
