Howell Park
04/08/2023 · Primary School
What is the definition of acceleration? An object's resistance to motion How fast The change in velocity over time Question 14 (Mandatory) ( 1 point) A bike accelerates from \( 100 \mathrm{~km} / \mathrm{hr} \) to \( 200 \mathrm{~km} / \mathrm{hr} \) in 4 hours. What is the
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The definition of acceleration is the change in velocity over time.
Given:
- Initial velocity (\( v_i \)) = 100 km/hr
- Final velocity (\( v_f \)) = 200 km/hr
- Time taken (\( t \)) = 4 hours
To find the acceleration (\( a \)), we can use the formula:
\[ a = \frac{{v_f - v_i}}{t} \]
Substitute the given values into the formula:
\[ a = \frac{{200 - 100}}{4} \]
Now, we can calculate the acceleration.
Calculate the value by following steps:
- step0: Calculate:
\(\frac{\left(200-100\right)}{4}\)
- step1: Remove the parentheses:
\(\frac{200-100}{4}\)
- step2: Subtract the numbers:
\(\frac{100}{4}\)
- step3: Divide the terms:
\(25\)
The acceleration of the bike is 25 km/hr².
Quick Answer
The definition of acceleration is the change in velocity over time. The bike's acceleration is 25 km/hr².
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