3 years ago

A person on a bike (m=90kg) is traveling 4m/s at the top of a 2m hill. What is his/her

Physics

2 answers:

Valentin [98]3 years ago

7 0

The answer is 1736 thank youu

alekssr [168]3 years ago

5 0

Answer:

Ug = 1764J

Explanation:

Ug = mgh

Ug = 90*9.8*2

Ug = 1764J

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Un camion de envios se encuentra detenido en una señal de pare, permitiendo que pase una ambulancia. Inicia su recorrido y al ca

Nesterboy [21]

Answer:

$0.741\ \text{m/s}^2$

Explanation:

v = Velocidad final = $40\ \text{km/h}=\dfrac{40}{3.6}\ \text{m/s}$

u = Velocidad inicial = 0

t = Tiempo empleado = 15 s

a = Aceleración

De las ecuaciones cinemáticas tenemos

$v=u+at\\\Rightarrow a=\dfrac{v-u}{t}\\\Rightarrow a=\dfrac{\dfrac{40}{3.6}-0}{15}\\\Rightarrow a=0.741\ \text{m/s}^2$

La aceleración del camión en el primer intervalo de tiempo es $0.741\ \text{m/s}^2$ .

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3 years ago

A 12 N force is used to pull a wagon 10 m to the left in 15 seconds. Which of the following represents the magnitude of the forc

Lana71 [14]

1. - 12N

2.- 2 hours

3. - 0.5 m/s/s

7 0

3 years ago

Read 2 more answers

A jet plane is cruising at 310 m/s when suddenly the pilot turns the engines up to full throttle. after traveling 4.0 km , the j

Inessa [10]

For this problem, we would be using the formula: Vf^2 = Vi^2 + 2ad
where:
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Vi = 300m/s
a = ?
d = 4.0km
= 4000m

400^2 = 300^2 + 2a4000
a = [ 160000 - 90000 ] / 8000
a = 8.75m/s^2
rounding it off to 2 significant figures, will give us 8.8 m/s^2.

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3 years ago

A centrifuge in a forensics laboratory rotates at an angular speed of 3,700 rev/min. When switched off, it rotates 46.0 times be

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Answer:

Explanation:

Given,

initial angular speed, ω = 3,700 rev/min

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