The cheetah is one of the fastest accelerating animals, for it can go from rest to 28.0 m/s in 5.20 s. If its mass is 100 kg, de
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Answer:
a) 138.6 m/s
b) 762.3 m
c) 122.3 m/s
d) 24.47
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration
Velocity at the end of its upward acceleration is 138.6 m/s
Maximum height the rocket reaches is 762.3 m
The velocity with which the rocket crashes to the Earth is 122.3 m/s
Total time from launch to crash is 12.47+11 = 24.47 seconds
Answer:
Explanation:
The formula to find average acceleration is a=Δv/Δt.
Convert 216 km/hr to m/s
216 km/hr * 1000 m/km * 1 hr/60 mins * 1 min/60 secs = 60 m/s
So a= (60 m/s)/(5.0*10^-3) = 12000 m/s^2
Put that into scientific notation to get 1.2*10^4 m/s^2