A child on a Ferris wheel is moving vertically upward at 6.20 m/s at one instant, and 0.150 s later is moving at 6.20 m/s at an angle of 41.5° above the horizontal. Estimate the child's instantaneous acceleration.(adsbygoogle = window.adsbygoogle || []).push({});

What is the magnitude?

What is the direction? (degrees below the horizon)

I tried using the equation

ax=V(cos)THETA - Vinitial/TIME

ay=V(sin)THETA-0/TIME

Then taking the squareroot of the two answers above squared, but this did not work. where am i going wrong?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Instantaneous Acceleration?

**Physics Forums | Science Articles, Homework Help, Discussion**