Impulse–momentum Calculator

What the Impulse–momentum Calculator does

This calculator applies F*t = m*v_before - m*v_after to problems in Motion, Forces and Gravity. It is separated from the full formula sheet so you can focus on one physical relationship, enter the available measurements and solve directly for the quantity required by the question.

How to use the calculator

1. Read the question and identify which listed variable is unknown.
2. Convert every known measurement to the unit printed beside its input.
3. Enter the known values and leave exactly one input empty.
4. Select Calculate missing value.
5. Review the formula, entered values, numerical substitution and rounded result in the explanation panel.

Variables and units

• F - average force (N)
• t - time (s)
• m - mass (kg)
• v_before - velocity before (m/s)
• v_after - velocity after (m/s)

The calculator can solve for F, t, m, v_before, v_after. Where an expression contains an angle, enter it in degrees. Maintain consistent SI units unless the question explicitly defines another system.

Interpreting the result

A numerical answer is only valid when the selected formula's assumptions match the physical situation. Check the sign, direction, magnitude and unit. Equations involving squares, roots or inverse trigonometric functions may have more than one mathematical solution; select the solution consistent with the described event. Keep extra precision in intermediate values and apply significant figures to the final answer.

Calculation explanation

After you calculate, the page reveals four steps: the formula used, all values entered, the substituted numerical expression, and the evaluated result. This provides a transparent check against your handwritten algebra and helps locate unit-conversion or substitution mistakes. In an assessment, show your own working and state relevant assumptions rather than copying only the final number.

Frequently asked questions

Can I solve for a variable that is not on the left side?

Yes. Leave that variable empty and provide the other values required by a complete relationship.

Why does the calculator reject my values?

The inputs may create division by zero, an invalid square root, an impossible inverse-trigonometric value or another result outside the real-number domain.

Should I round every step?

No. Retain unrounded intermediate values and round the final result to the precision justified by the supplied data.