Answer:
Explanation:
F = ma
mgsinθ - μmgcosθ = ma
gsinθ - μgcosθ = a
μgcosθ = gsinθ - a
μ = (gsinθ - a) / gcosθ
μ = (9.81sin24 - 0.245) / 9.81cos24
μ = 0.4178906...
μ = 0.418
Answer:
58230.08849 Pa
Explanation:
F = W = Weight of the person = 658 N
A = Area to which the force is applied =
When the force is divided by the area to which the force is applied we obtain the pressure
Hence, pressure the foot exerts on the floor is 58230.08849 Pa
We are
given that:
m = 5.5 kg
d = 12 m
t = 1.75 s
Using the
distance formula, we can get the acceleration of the ball:
d = (1/2) a*t^2
Rearranging:
a = 2d/t^2
= 2*(12 m)/(1.75 s)^2
a = 7.837
m/s^2
<span>Using
Newton’s 2nd law, force is defines as:</span>
F = ma
F = 5.5 kg
(7.837 m/s^2)
<span>F = 43.10
N</span>
Answer:
the correct answer is A :)