Question

.a car increases its speed from 10 m/s to 20/s in 2.5. seconds calculate it’s acceleration

Answer 1

Answer:

$\boxed {\boxed {\sf 4\ m/s^2}}$

Explanation:

Acceleration is the rate of change of an object with respect to time. It is the change in velocity over the time.

$a= \frac{v_f-v_i}{t}$

The car starts at 10 meters per second and increases to 20 meters per second in 2.5 seconds.

• $v_f$= 20 m/s
• $v_i$= 10 m/s
• t= 2.5 s

Substitute the values into the formula.

$a= \frac{ 20 \ m/s - 10 \ m/s}{2.5 \ s }$

Solve the numerator.

$a= \frac{10 \ m/s}{2.5 \ s}$

Divide.

$a= 4 \ m/s/s$

$a= 4\ m/s^2$

The acceleration of the car is 4 meters per second squared.