Question

NCERT CLASS IX - Science Textbook
Chapter 8 - Motion

A trolley, while going down an inclined plane, has an acceleration of 2 cm s-2. What will be its velocity 3 s after the start?

Answer 1

Here we know,
initial velocity = 0 m/s
acceleration = 2 cm/s²
time = 3 s
final velocity = ?
                  v = u + a × t
                     = 0 + 2 × 3
                     = 6 cm/s
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