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3 years ago

Which equations can be used to solve for acceleration? Select four options.

Physics

2 answers:

tatiyna3 years ago

7 0

Explanation:

Acceleration of an object is calculated by finding the change in its velocity divided by time taken.

If $v_i$ is initial velocity, $v_f$ is final velocity and t is time taken. Then the acceleration of the object is given by :

$a=\dfrac{v_f-v_i}{t}\\\\at=v_f-v_i\\\\v_f=v_i+at$ .....(1)

So, the above equation is used to find acceleration. It is called the first equation of motion. After rearranging equation (1), the correct options are :

$t=\dfrac{\Delta v}{a}$

$v_i=v_f-at$

$v_f=v_i+at$

$a=\dfrac{\Delta v}{t}$

PtichkaEL [24]3 years ago

3 0

Answer:

a,c,d

Explanation:

i got it right in a test

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Wewaii [24]

Answer: 6700m/s^2 E

Explanation:

Given the following :

Velocity of ball before being hit by a racquet = initial velocity(u) = 55m/s W

Velocity of the ball after being hit = final Velocity (v) = 45m/s E

Time of contact between ball and racquet (t) = 1.5 × 10^-2

The acceleration of a body is the change in Velocity of a body with time. It given by:

Acceleration (a) = [final Velocity(v) - initial velocity(u)] / time(t)

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