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( ASSIGNMENT ) :
Solve the following problem. Show your given, unknown, formula, solution and final answer. Write it on your science notebook.
3. Teve is driving down the parkway when he spots Lamby and he gets hungry. He is traveling at 88 km/h and accelerates at 5 km/h/h. How long will it take him toreach124 km/h to catch Lamby?
• GIVEN:
• UNKNOWN:
• FORMULA:
• SOLUTION:
• FINAL ANSWER:
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Answer:
• GIVEN: Teve is driving down the parkway at 88 km/h and accelerates at 5 km/h/h.
• UNKNOWN: How long will it take him to reach 124 km/h to catch Lamby?
• FORMULA:
vf = vi + at
where:
vf = final velocity
vi = initial velocity
a = acceleration
t = time
• SOLUTION:
Initial velocity, vi = 88 km/h
Final velocity, vf = 124 km/h
Acceleration, a = 5 km/h/h
Substitute the given values to the formula:
vf = vi + at
124 km/h = 88 km/h + 5 km/h/h × t
Solve for time, t:
124 km/h - 88 km/h = 5 km/h/h × t
36 km/h = 5 km/h/h × t
t = 36 km/h ÷ 5 km/h/h
t = 7.2 h
• FINAL ANSWER: It will take Teve 7.2 hours to reach 124 km/h to catch Lamby.