We have that the maximum rank of the kangaroo is given by:
R = v0 ^ 2 sin (2θ) / g
where,
v0 = initial velocity
θ = angle of the velocity vector formed from the horizontal
g = gravity
Clearing the speed we have:
v0 ^ 2 = (R * g) / (sin (2θ))
Substituting values
v0 = root (((11) * (9.8)) / (sin (2 (21 * (pi / 180)))))
v0 = 12.69 m / s
answer
its takeoff speed is 12.69 m / s
When riding a bicycle, if you stop pedaling you will still continue to move forward due to inerita.
Answer:
The wavelength of a wave is 1.72 m.
Explanation:
Given,
Frequency, f = 0.9 Hz
Speed of a wave, v = 154.9 cm/s = 1.549 m/s
The speed of a wave is given by :
So, the wavelength of a wave is 1.72 m. Hence, this is the required solution.
Explanation:
According to the question ,
- mass = 920kg
- time = 1s
- Initial velocity = 16m/s
- Final velocity = 9.5m/s
And we need to find out ,
As we know that Force is the rate of change of momentum ,
F = ∆p/t
F = mv - mu/t
F = m(v - u)/t
F = 920(9.5-16)/1 N
F = 920 * -6.5 N
Force = -5980N
The direction of the force will be opposite to the direction of velocity of the car .
- Distance travelled while breaking ?
Using the 3rd equation of motion , we have ,
2as = v² - u²
2 (v-u)/t *s =(v+u)(v-u)
2(t)(s) = v + u
2 * 1 * s = 16 + 9.5
s = 25.5/2 m
s = 12.75 m
Answer:
2.9
Explanation:
es 2 minutos con 9 segundos seria algo así (1450)÷(500)