3. An object with an initial velocity of 20 m/s accelerates unlformly at 5 m/s2 in the direction of its motion for a distance of 10m. What is the final velocity of the object?
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Final Velocity Formula
v f = v i + a Δ t . v_f = v_i + aΔt. vf=vi+aΔt. For a given initial velocity of an object, you can multiply the acceleration due to a force by the time the force is applied and add it to the initial velocity to get the final velocity.
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Let the final velocity of the object be x and we know that as
- Initial velocity (u) = 20 m/s
- Acceleration (a) = 5 m/s²
- Distance (s) = 10 m
~We can use Third Equation of Motion to get required value i.e. Final Velocity as:-
Hence,
The Final velocity of the object after 10m will be 22.4 m/s.
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