Question

Calculate the. accleration of a car from rest that travels at 24 m/s, due east in 30 seconds.
show the complete solution​

Answer 1

Answer:

u=0, v=24 m/s, t=30 sec

v=u+at

24=0+a×30

a=24/30

a=4/5 m/s

Answer 2

★Given:-

• A car starts from rest (u = 0)
• Travels at 24m/s (v = 24m/s)
• Time = 30seconds

★To find:-

• The acceleration.

★Solution:-

Using the formula,

✦V = u + at

Where,

• v = final velocity
• u = initial velocity
• t = time

Substituting values in the formula,

➔V = u + at

➔24 = 0 + a(30)

➔a = 24/30

➔a = 0.8m/s²

Hence, the acceleration is 0.8m/s².

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Know more:-

To derive the components like displacement(s), velocity (initial and final), time(t) and acceleration(a),we use the equations of motion given below.

• v = u + at
• v² - u² = 2as
• s = ut + 1/2at²

These equations can only be used when acceleration is constant and motion is a straight line.

➺Acceleration = Change in velocity/Time Taken

➺Distance = Velocity × Time.

➺Average velocity = (u+v)/2

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