Answer:
Explanation:
Reaction force of inclined surface
R = mgcos30
=60 x 9.8 x .866
= 509 N
Force of kinetic friction
= .12 x 509
= 61.08 N
b )
net force downwards = mgsinθ - μmgcosθ
acceleration = g sinθ - μgcosθ
9.8 sin30 - .12 x 9.8 x cos30
= 4.9 - 1.018
a= 3.88 m /s²
c )
v² = 2as
= 2 x 3.88 x 20
v = 12.46 m /s
The third angle of the triangle should be 37π/72 rad.
We need to know about the triangle rule to solve this problem. One of the rules of the triangle is the total angle inside the triangle is 180⁰.
A + B + C = 180⁰
From the question above, the given parameter is
A = π/9 rad
B = 3π/8 rad
Convert the angle to radian
180⁰ = π
Hence, the total angle should be
A + B + C = π
π/9 + 3π/8 + C = π
C = π - (π/9 + 3π/8)
C = π - 35π/72
C = 37π/72 rad
Hence, the third angle of the triangle should be 37π/72 rad
Find more on triangle at: brainly.com/question/25215131
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Answer:
2.705 m/s
Explanation:
formular for momentum(p):
P = m * v; where m and v represents mass in kg and velocity in m/s respectfully
total momemtum after an elastic collision we have;
Kindly attached to this mail.
Answer:
C. Divide the total distance by the total driving time.
Explanation:
As we are finding average speed across the entire trip, we divide the total distance by the total time taken. This is because speed = distance/time and will give us the average over the whole time.
Hope this helped!