solve A man pushes a 25kg lawn mower using a handle inclined 35.0degree from the
ID: 2129285 • Letter: S
Question
solve
A man pushes a 25kg lawn mower using a handle inclined 35.0degree from the horizontal. He pushes with 80N directed along the handle. What's the mower's weight? Express your answer to two significant figures and include the appropriate units. What's the normal force on the mower? Express your answer to two significant figures and include the appropriate units. What's the mower's acceleration (ignoring friction)? Express your answer to two significant figures and include the appropriate units. An Olympic bobsled starts from rest and slides down a frictionless 9.50degree slope. What's its final speed after 11s ? Express your answer to two significant figures and include the appropriate units.Explanation / Answer
A. W = mg = 25 x 9.8 = 245 N
B. N = mg + Fsin35 = 245 + 80sin35 = 290.89 N
C. Fcos35 = 25a
a = 2.62 m/s2
A. a = gsin9.50 = 1.62 m/s2
B. v = u +at = 0 + 1.62 x11 = 17.79 m/s
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.