Homework Help: Physics

Posted by kate on Monday, November 19, 2012 at 4:29pm.

part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. Find its centripetal acceleration. Answer in units of m/s^2.

part 2 of 3: It continues to fly along the same horizontal arc but increases its speed at the rate of 1 m/s^2. Find the magnitude of acceleration under these new conditions. Answer in units of m/s^2.

Part 3 of 3: Find the direction of acceleration relative to the direction of motion under these conditions. Answer between -180 degrees and 180 degrees. Answer in unit of degrees.

Physics - Elena, Monday, November 19, 2012 at 4:40pm
(a) Centripetal (or normal)
acceleration is
a(c)= m•v²/R=…
(b) Tangential acceleration
a(τ)= 1 m/s²
a=sqrt{a(c)² +a(τ)²}=...
(c)tanα= a(c)/a(τ)= ..

Answer this Question

Related Questions

Physics - part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a ...
Physics - part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a ...
Physics - part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a ...
physics - (A.) A hawk flies in a horizontal arc of radius 13.4 m at a constant ...
physics - (A.) A hawk flies in a horizontal arc of radius 13.4 m at a constant ...
physics - A hawk ﬂies in a horizontal arc of radius 15.7 m at a ...
physics - 1)A hawk flies in a horizontal arc of radius 16 m at a constant speed ...
physics - A hawk flies in a horizontal arc of radius 16 m at a constant speed of...
Physics HELP ASAP PLEASE - A hawk is flying horizontally at 10 m/s in a straight...
physics - A hawk is flying horizontally at 14.0 m/s in a straight line, 250 m ...

For Further Reading

First Name:
School Subject:
Answer: