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Very confused with physics questions, can someone please help?
Could someone answer the following questions and explain how you answered them? thanks in advance
48. A recording timer makes 625 dots in 5.0 s. Calculate its period and its frequency
49. Solve for the stated variable using the formula provided.
a) A = LxW; solve for L and W
b) F = m x a; solve for m and a
c) a = v/t, solve for v and t
50. The record speed of a motorcycle is about 82 m/s (295 km/h). If the cyclist took 180 s to make one lap of the track, what was the length of the track?
1 Answer
- 8 years agoFavorite Answer
48) period = (5/625) = 0/008s
T=1/f = 125 Hz
49) Im not sure what it meant by solve... is it changing the subject?
Then the ans is : L = A/ W W = A/L
m= F/a a=F/m
v=at t=v/a
50) s = d/t
d= st
=82 * 180 = 14760m (this question is weird... is the speed constant throughout? or instantaneous?
