I have two quick questions. The first is, if a ball is thrown from a bridge 25 meter above the ground at 49m/s, is the acceleration negative? I thought since it was thrown up, it would be positive, but the book has a similar problem, a ball is thrown upward at a speed of 48ft/s from a cliff 432ft above the ground, and it says the acceleration is -32.(adsbygoogle = window.adsbygoogle || []).push({});

Second, what is the antiderivative of [tex]\frac{x^2}{\sqrt{x}} + \frac{1}{sin^2x}[/tex]

I can got:

[tex]\frac{2}{5}x^{5/2}+\frac{1}{\tan{x}}+c[/tex]

But I am pretty sure [tex]\frac{1}{\tan{x}}[/tex] isn't right.

**Physics Forums - The Fusion of Science and Community**

Dismiss Notice

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!

# Positive or Negative Acceleration? and Antiderivative of 1/(sin^2)?

Loading...

Similar Threads for Positive Negative Acceleration | Date |
---|---|

B Definite integrals with +ve and -ve values | Jun 10, 2017 |

B Some doubts about functions... (changing the independent variable from time to position) | May 6, 2017 |

I Integrating a curve of position vectors | Mar 29, 2017 |

Ignoring positive/negative values with trig substitutions? | Sep 1, 2011 |

Negative and positive | Jun 2, 2008 |

**Physics Forums - The Fusion of Science and Community**