Physics: Amotorcycle moving at a velocity of 20 m/s accelerates uniformly at 2 the velocity of the motorcycle will be m/s after 10 seconds. question 4 options: a. none of the below b. 42 c. 40 d. 22

Amotorcycle moving at a velocity of 20 m/s accelerates

Ответ:

mariap3504

11.03.2022

Physics

Answer

C. 40 m/s

Explanation

To solve this, we are using the kinematic equation for final velocity:

v_f=v_i+a*t

where

v_f is the final velocity

v_i is the initial velocity

is the acceleration

is the time

We know from our a problem that a motorcycle moving at 20 m/s accelerates uniformly 2 m/s^2 for 10 seconds, so $v_i=20\frac{m}{s}$ , $a=2\frac{m}{s^2}$ , and t=10s .

Now we can replace the values

v_f=v_i+a*t

$v_f=20\frac{m}{s} +2\frac{m}{s^2} *10s$

$v_f=20\frac{m}{s} +2\frac{m}{s} *10$

$v_f=20\frac{m}{s} +20\frac{m}{s}$

$v_f=40\frac{m}{s}$

We can conclude that the velocity of the motorcycle will be 40 m/s after 10 seconds.

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Amotorcycle moving at a velocity of 20 m/s accelerates uniformly at 2 the velocity of the motorcycle will be m/s after 10 seconds. question 4 options: a. none of the below b. 42 c. 40 d. 22

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