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An object moves in a straight line with a velocity of 10 m/s. If it accelerates
An object moves in a straight line with a velocity of 10 m/s. If it accelerates at 2 m/s² for 5 seconds, what will be its final velocity?
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Q1
An object moves in a straight line with a velocity of 10 m/s. If it accelerates at 2 m/s² for 5 seconds, what will be its final velocity?
20 m/s
30 m/s
10 m/s
15 m/s
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Final velocity (v) = u + at = 10 + (2 * 5) = 20 m/s.
Questions & Step-by-step Solutions
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Q
Q: An object moves in a straight line with a velocity of 10 m/s. If it accelerates at 2 m/s² for 5 seconds, what will be its final velocity?
Solution:
Final velocity (v) = u + at = 10 + (2 * 5) = 20 m/s.
Steps: 8
Show Steps
Step 1: Identify the initial velocity (u) of the object, which is given as 10 m/s.
Step 2: Identify the acceleration (a) of the object, which is given as 2 m/s².
Step 3: Identify the time (t) for which the object accelerates, which is given as 5 seconds.
Step 4: Use the formula for final velocity: v = u + at.
Step 5: Substitute the values into the formula: v = 10 + (2 * 5).
Step 6: Calculate the acceleration part: 2 * 5 = 10.
Step 7: Add the initial velocity to the calculated acceleration: 10 + 10 = 20.
Step 8: The final velocity of the object is 20 m/s.
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