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You have to assume that the acceleration is constant, otherwise you cannot solve the problem. What you cannot assume is that the acceleration is zero, which is what you did initially. So yes, use the SUVAT equations.zanyzoya said:Hmm we can’t use suvat equations as acceleration is not constant ...
Impulse is a force that acts on an object for a short period of time, resulting in a change in the object's momentum.
Impulse is calculated by multiplying the force acting on an object by the time during which the force is applied.
The unit of impulse is Newton-second (Ns) or kilogram-meter per second (kg·m/s).
Impulse is directly proportional to the change in momentum of an object. This means that the greater the impulse, the greater the change in momentum.
Some examples of impulse in everyday life include kicking a soccer ball, hitting a baseball with a bat, or jumping off a diving board. These actions involve a short force acting on an object, resulting in a change in momentum.