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A body moves in a straight line with an initial velocity of 10 m/s and accelerat
A body moves in a straight line with an initial velocity of 10 m/s and accelerates at 2 m/s². What will be its velocity after 5 seconds?
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Practice Questions
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Q1
A body moves in a straight line with an initial velocity of 10 m/s and accelerates at 2 m/s². What will be its velocity after 5 seconds?
20 m/s
25 m/s
30 m/s
35 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: A body moves in a straight line with an initial velocity of 10 m/s and accelerates at 2 m/s². What will be its velocity after 5 seconds?
Solution:
Final velocity (v) = u + at = 10 + 2*5 = 20 m/s.
Steps: 8
Show Steps
Step 1: Identify the initial velocity (u). In this case, u = 10 m/s.
Step 2: Identify the acceleration (a). Here, a = 2 m/s².
Step 3: Identify the time (t) for which the body is accelerating. In this case, t = 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 result: 10 + 10 = 20.
Step 8: The final velocity after 5 seconds is 20 m/s.
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