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  2. Find Time, Vyf & Vx Given Change in X & Y - Physics Forums

    www.physicsforums.com/threads/find-time-vyf-vx-given-change-in-x-y.776831

    Oct 18, 2014. Time. In summary, the conversation revolves around finding the time, final vertical velocity, and horizontal velocity given the values of change in X and Y. The units for Vy and Vx are both in m/s and the formula used to calculate these values is y=vinitialy (t)+1/2 (9.8) (t)^2 for time, vx=x/t for horizontal velocity, and vfinaly ...

  3. How can I find time in physics with a motion problem?

    math.stackexchange.com/questions/2882407

    The given equation, s = vt − 1 2at2, is a quadratic equation in t. Substituting the above values in it gives-. 15 = 0 + 5 2t2, (because, v = 0 and a = (− 5) as is given in the question) Giving, time t = ± √6s. Since, time cannot be negative your answer is √6s. (Answer) Share. Cite.

  4. Simplifying:t \approx 0.34 secondsCalculating Hang ... - Physics...

    www.physicsforums.com/threads/simplifying-t-approx-0-34-secondscalculating...

    Time. In summary: Simplifying:t = \sqrt {\frac {1.16} {9.81}} = \sqrt {0.118} = 0.344 seconds.In summary, the hang time of an athlete jumping 0.58 meters vertically can be calculated by using the formula t = sqrt (1.16/9.81), which equals 0.344 seconds. This formula is derived from the concept that total hang time is equal to twice the time it ...

  5. Using quadratic formula to find time [projectile motion] -...

    www.physicsforums.com/threads/using-quadratic-formula-to-find-time-projectile...

    The variables in a quadratic equation for projectile motion are the initial velocity (u), the acceleration due to gravity (g), and the initial height (h). These variables are used to represent the motion of the object in the equation h = ut + 1/2 gt^2, where h is the height at time t. 3.

  6. How long an object takes to stop - using friction, momentum

    www.physicsforums.com/threads/how-long-an-object-takes-to-stop-using-friction...

    What you know is: 1) A force (10N - friction) acts for 3 seconds. The block accelerates, reaches a speed , and travels a distance , say. 2) Friction slows the block from the speed . The block travels a further distance until it stops. You should be able to calculate the two distances from the equations of motion.

  7. physics - Finding time with given distance and acceleration. Help...

    math.stackexchange.com/questions/504494/finding-time-with-given-distance-and...

    A plane accelerates from rest at a constant rate of $5.00 \\, \\frac{m}{s^2}$ along a runway that is $1800\\;m$ long. Assume that the plane reaches the required takeoff velocity at the end of the runw...

  8. Kinematics - finding the time when two moving objects meet -...

    www.physicsforums.com/threads/kinematics-finding-the-time-when-two-moving...

    2. Write a second SUVAT equation giving the position of object 2 at any time t. 3. Say with an equation that at specific time t c (the catch-up time) the two objects are at the same position. 4. Solve that equation for t c. 5. Use t c to find anything else the problem might ask. In this case if a solution for t c exists, you will have found the ...

  9. Calculate time given distance, mass, and force - Physics Forums

    www.physicsforums.com/threads/calculate-time-given-distance-mass-and-force.919283

    To calculate time given distance, mass, and force, you can use the formula t = (2d/m)^1/2, where t represents time, d represents distance, and m represents mass. This formula is derived from the equation F = ma, where F is force, m is mass, and a is acceleration. By rearranging the equation to solve for time, we get t = (2d/m)^1/2.

  10. Find time at which position vector points towards origin -...

    www.physicsforums.com/threads/find-time-at-which-position-vector-points...

    Yes, the time at which a position vector points towards the origin can be negative. This can happen if the position vector is moving in the opposite direction of the origin vector and then changes direction to point towards the origin. In this case, the angle between the two vectors will be greater than 180 degrees, resulting in a negative time ...

  11. Calculating Distance and Time given mass,velocity,and Force.

    www.physicsforums.com/threads/calculating-distance-and-time-given-mass...

    To calculate time, you can use the formula time = mass x velocity / force. This formula is based on Newton's second law of motion, which states that force is equal to mass times acceleration. 3. Can you calculate distance and time without knowing the force? Yes, you can still calculate distance and time without knowing the force.