Physics: An automobile travels on a straight road for 40km at 30 km/hr. it then continues in the same director for another 40 km at 60 km/hr. (a) what is the average assume that it moves in the positive x direction.

An automobile travels on a straight road for 40km

Ответ:

jennybee12331

02.01.2022

Physics

$v_{avg} = 40 km/h$

Explanation:

Time taken by the car to move first 40 km distance

$t_1 = \frac{d}{v}$

here we have

$t_1 = \frac{40}{30}$

similarly the time taken by car to move next 40 km is given as

$t_2 = \frac{40}{60}$

so total time of the motion is given as

t = t_1 + t_2

$t = \frac{40}{30} + \frac{40}{60}$

t = 2 hours

total distance moved by the automobile

d = 40 + 40 = 80 km

so the average speed is given as

$v_{avg} = \frac{distance}{time}$

$v_{avg} = \frac{80 km}{2 hr}$

$v_{avg} = 40 km/h$

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Ответ:

bryanmcmillianjr

28.03.2023

Physics

los neutrinos, sin embargo, participan en interacciones

Explanation: No lleva carga eléctrica. Sin embargo, el hecho de que los neutrinos participen en interacciones con otras partículas muestra que debemos tratar

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An automobile travels on a straight road for 40km at 30 km/hr. it then continues in the same director for another 40 km at 60 km/hr. (a) what is the average assume that it moves in the positive x direction.

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