The body moves along the x coordinate axis, the directions of the initial velocity and acceleration coincide
| March 31, 2021 | education
The body moves along the x coordinate axis, the directions of the initial velocity and acceleration coincide with the positive direction of the axis, and their modules are equal to 7 m / s and 5 m / s. Determine the speed after 8 seconds from the start of the timing.
To calculate the speed of the body in question after 8 seconds, use the formula: V = Vн + a * t.
Values of variables: Vн – module of initial speed (Vн = 7 m / s); a – constant acceleration modulus (a = 5 m / s2); t – elapsed time (t = 8 s).
Calculation: V = Vн + a * t = 7 + 5 * 8 = 47 m / s.
Answer: After 8 seconds, the speed of the body in question will be equal to 47 m / s.
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