m = 4 kilograms is the mass of a moving body;
P = 20 kilograms * meter / second – the impulse of a moving body.
It is required to determine v (meter / second) – the speed of a moving body.
To find the speed of a body, you need to use the following formula:
P = m * v, hence:
v = P / m = 20/4 = 5 meters per second.
Answer: the speed of the body is 5 meters per second.
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