# Physics

posted by .

*62. A 40.0-kg boy, riding a 2.50-kg skateboard at a velocity of +5.30 m/s across a level sidewalk, jumps forward to leap over a wall. Just after leaving contact with the board, the boy's velocity relative to the sidewalk is 6.00 m/s, 9.50° above the horizontal. Ignore any friction between the skateboard and the sidewalk. What is the skateboard's velocity relative to the sidewalk at this instant? Be sure to include the correct algebraic sign with your answer.

• Physics -

"..the boy's velocity relative to the sidewalk is 6.00 m/s, 9.50° above the horizontal."

The components of the velocity are:
6.00 cos9.5 = 5.92 m/s horizontal and
6.00 sin9.5 = 0.99 m/s vertical

• Physics -

(6-5.5)cos(7.3)

• Physics -

Two diamonds begin a free fall from rest from the same height, a time ?t (delta t) apart. How long after the first diamond begins to fall will the two diamonds be a distance d apart? Give your answer in terms of the variables given and g. Must be given in variables.. this is a symbolic problem

### Answer This Question

 First Name: School Subject: Answer:

### Related Questions

More Related Questions

Post a New Question