Explanation:
Acceleration is the change in speed over change in time.
a = Δv / Δt
a. The car's acceleration is:
a = (80 km/h − 0 km/h) / 10 s
a = 8 km/h/s
So every second, the speed increases by 8 km/h.
b. The cyclist's acceleration is:
a = (16 m/s − 4.0 m/s) / 5.6 s
a = 2.1 m/s²
c. The stone's speed is:
10.0 m/s² = (v − 0 m/s) / 3.5 s
v = 35 m/s
d. The time is:
1.6 m/s² = (10 m/s − 0 m/s) / t
t = 6.3 s
I think the answer is the second one
this question is tricky but the answer is C
By definition, the power is given by:

Where,
F: Force
d: distance traveled
t: time
The power units is watts.
Substituting values we have:

Making the corresponding calculations we have:
Answer:
he uses 63 watts of power:
Explanation:
because us humans just have to adapt animals have to smell and can tell if they are in dan