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→Example Calculations
===Example Calculations===
====Calculating Finding Accelerationgiven Change in Velocity and Time====
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====Calculating Finding the Acceleration given Mass and Force===={| class="wikitable"| style="height:20px; width:300px; text-align:center;" |A 7kg [[object]] is subjected to a [[Resultant Force|resultant force]] of 53N. Calculate the [[acceleration]] of the [[object]] correct to two [[Significant Figures|significant figures]].| style="height:20px; width:300px; text-align:center;" |A 160g snooker ball experiences a [[Resultant Force|resultant force]] of 12N. Calculate the [[acceleration]] of the snooker ball correct to two [[Significant Figures|significant figures]].|-| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities''' m = 7kg F = 53N| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities''' m = 160g = 0.16kg F = 12N|-| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].''' <math>F=ma</math> <math>53=7a</math>| style="height:20px; width:300px; text-align:left;" |'''2. [[Substitute (Maths)|Substitute]] the numbers and [[Evaluate (Maths)|evaluate]].''' <math>F=ma</math> <math>12=0.16a</math>|-| style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''<math>a = \frac{53}{7}</math> <math>a = 7.571m/s/s</math> <math>a \approx 7.6m/s/s</math>| style="height:20px; width:300px; text-align:left;" |'''3. [[Rearrange (Maths)|Rearrange]] the equation and [[Solve (Maths)|solve]].'''<math>a = \frac{12}{0.16}</math> <math>a = 75m/s/s</math>|} ====Finding Change in Velocitygiven Acceleration and Time====
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====Calculating Finding Time Takengiven Acceleration and Change in Velocity====
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| style="height:20px; width:300px; text-align:center;" |A ferry travelling at 5m/s slows down for a harbor at a rate of 0.02m/s/s. Calculate the time taken for the ferry to decelerate to 0.1m/s, correct to two [[Significant Figures|significant figures]].