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Results from this site for "bowling ball ramp for seniors" :
Wheel Chair Ramp - 1 1/2" Rise, 9.5" x 34" Threshold Ramp
The EZ-Access Threshold Ramp is a lightweight yet durable modular ramp designed for doorways, sliding glass doors and raised landings. Threshold ramps ...
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Questions & Answers Powered by Yahoo! Answers
Question : Physics question
Norma releases a bowling ball from rest; it rolls down a ramp with constant acceleration. After half a second it has traveled 0.75 m. How far has it traveled after two seconds a.1.2 m b.4.7 m c.9.0 m d.12 m
Answer:
This problem is very interesting. First, you have to find the unknown acceleration, then you can find the distance. s = ut + 1/2at2 0.75 = 0.5a * 0.52 a = 6 m /s2 Now reapply s= ut + 1/2at2 with the new t = 2s s = 12m So the answer is d. 12m.
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Question : 2 physics questions involving inertia and angular momentum
1. A bowling ball rolls without slipping up a ramp that slopes upward at an angle 27.8 degrees to the horizontal. Treat the ball as a uniform, solid sphere, ignoring finger holes. What is the acceleration of the benter of mass of the ball Give your answer in m/s2 to the first decimal place. Note: You do not need to know the mass of the ball to solve this problem 2. A yo-yo is made from two uniform disks each with mass m = 0.56 kg and radius R = 18.6 cm, connected by a light axle of radius b = 6.0 cm. A light, thin string is wound several times around the axle and then held stationary while the yo-yo is released from rest, dropping as the string unwinds. Find the tension in the string just before the yo-yo reaches its lowest point. Note: You do not need to know how long the string is to solve this problem. There is a relation between linear acceleration and Tension, and a relation between angular acceleration and Tension that should allow you to solve this problem in terms of what you already know.
Answer:
1. A bowling ball rolls without slipping up a ramp that slopes upward at an angle 27.8 degrees to the horizontal. Treat the ball as a uniform, solid sphere, ignoring finger holes. What is the acceleration of the benter of mass of the ball Give your answer in m/s2 to the first decimal place. Note: You do not need to know the mass of the ball to solve this problem 2. A yo-yo is made from two uniform disks each with mass m = 0.56 kg and radius R = 18.6 cm, connected by a light axle of radius b = 6.0 cm. A light, thin string is wound several times around the axle and then held stationary while the yo-yo is released from rest, dropping as the string unwinds. Find the tension in the string just before the yo-yo reaches its lowest point. Note: You do not need to know how long the string is to solve this problem. There is a relation between linear acceleration and Tension, and a relation between angular acceleration and Tension that should allow you to solve this problem in terms of what you already know.
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