Homework Help Forum: physics

Posted by naomi on Tuesday, November 3, 2009 at 7:20pm.

A particle at rest undergoes an acceleration of 2.1 m/s2 to the right and 5 m/s2 up. a) What is its speed after 7.9 s? Answer in units of m/s.

• physics - bobpursley, Tuesday, November 3, 2009 at 7:42pm

  horizontal: 2.1*7.9= ... vertical: 5*7.9=.... speed= sqrt(horizontal^2+ vertical^2)

  
  

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