The position at time t = 0.2 s, given the data from the question is 132 cm
What is velocity?
Velocity is simply defined as the rate of change of displacement with time. Mathematically, it can be expressed as:
Velocity = change of displacement / time
With the above formula, we can obtain the position at t = 0.2 s. Details below:
How to determine the displacement at t = 0.2 s
From the question given above, the following data were obtained:
- Time 1 = 0 s
- Time 2 = 0.2 s
- Change in time = 0.2 - 0 = 0.2 s
- Velocity = 510 cm/s
- Displacement 1 = 30 cm
- Displacement 2 =?
Velocity = change of displacement / time
510 = (Displacement 2 - 30) / 0.2
Cross multiply
Displacement 2 - 30 = 510 × 0.2
Displacement 2 - 30 = 102
Collect like terms
Displacement 2 = 102 + 30
Displacement 2 = 132 cm
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