Answer:
181 m
Explanation:
a = v² / r
6.09 (9.81 m/s²) = (104 m/s)² / r
r = 181 m
A: Air masses move and meet.
Explanation:
Acceleration is the change in velocity over change in time.
a = Δv / Δt
a = (7 m/s − 0.8 m/s) / 15 s
a ≈ 0.413 m/s²
Answer:
The answer is a sum so 10+5 equals 15
Explanation:
Answer:
b) a horse pulls a wagon at a constant velocity
Explanation:
As we know that ,work done is the dot product of force vector and displacement vector.
W= F.d
W=work
F=Force
d=Displacement
We also know that
F = m a
m= mass ,a = acceleration
When velocity is constant then rate of change in the velocity will be zero,then we can say that acceleration will be zero.
When a= 0 Then F= 0
W= F.d ( F=0)
W = 0
Therefore option b i correct because horse is going with constant velocity.