The speed of a material point within 10 seconds increased from zero to 8.0 m / s.
| September 11, 2021 | education
The speed of a material point within 10 seconds increased from zero to 8.0 m / s. Determine the acceleration if it was constant.
t = 10 s.
V0 = 0 m / s.
V = 8 m / s.
a -?
According to the definition, the acceleration of a body a is a vector physical quantity that shows the rate of change in the velocity of the body V.
The acceleration of the body, and is determined by the formula: a = (V – V0) / t, where V is the final velocity of the body, V0 is the initial velocity of the body, t is the time interval during which the velocity has changed.
Since the initial velocity of a material point is V0 = 0 m / s, the formula will take the form: a = V t
a = 8 m / s / 10 s = 0.8 m / s ^ 2.
Answer: the acceleration of a material point is a = 0.8 m / s ^ 2.
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