A body starts with a velocity of and accelerates uniformly at . What is its velocity after (in m/s)?
Answer and explanation
Correct answer: D. 26
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- Step 1: Apply the first kinematic equation for constant acceleration: , where is initial velocity, is acceleration, and is time.
- Step 2: Substitute the given parameters , , and : .
- Step 3: Calculate the product and add: .
Answer
26.
Why not the others: '56' multiplies instead of adding initial velocity to ; '8' adds acceleration directly to velocity () without multiplying by time ; '21' calculates only the velocity increase , omitting the initial velocity .
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