PHYA10H3 Lecture Notes - Lecture 3: Khanqah, Opata Language

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bluehedgehog628

15 Jan 2016

School

UTSC

Department

Physics and Astrophysics

Course

PHYA10H3

Professor

Brian Wilson

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Document Summary

Phya10 practical week 3: a cart slides down an air track. You measure the distance d traveled after 1, 2 and 3 seconds, running 5 trials for each time. Your data is as shown in the table below. All measurement uncertainties are 0. 01 seconds for the time and 0. 005 m for the distances. Use this data to plot a distance-time graph, including uncertainties, using the average distance for each time. Use the computer to t a polynomial so you can nd the acceleration. 0. 488 m 0. 556 m 0. 445 m 0. 423 m 0. 515 m. 1. 861 m 1. 922 m 1. 879 m 1. 993 m 1. 950 m. Explain. (c) draw a velocity-time graph for this object. (d) draw an acceleration-time graph for this object: a car starts from rest. It accelerates at a rate which constantly increases and is described by the equation a(t) = 1. 5t m/s3. Use this model to estimate their top speed.

Related Questions

1. If an object moves with constant acceleration, its velocity a) must be constant also b) always decrease c) increases by the same amount each second d)change by varying amount depending on its speed.

2. A man leans over the edge of a cliff and throws a rock upward at 4.9 m/s. Neglecting air resistance, two seconds later the rock's speed is a) 9.8 m/s b) 14.7 m/s c) 4.98 m/s d) zero e) none of the above

3. Twelve seconds after starting from rest, an object falling freely will have a speed of a) 10 m/s b) 50 m/s c) more than 100 m/s d)100 m/s.

4. A ball is thrown 125 meters upward and then falls the same distance back to Earth. Neglecting air resistance, its total time in the air is about 10 seconds. about 15 seconds. about 5 seconds. more than 20 seconds.

bluecod895

A car accelerates at a constant rate from zero to 22.7 m/s in 10 seconds and then slows to 16 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s^2 during the 15 seconds?

The function s(x) = 3600 / 60 + x = 3600(60 + x)^-1 gives a person's average speed in miles per hour if he or she travels one mile in x seconds more or less than 60 seconds. Use a linear approximation to s at 0 to find a person's approximate average speed if he or she travels one mile in 54 seconds. What is his or her exact speed?

harlequinbadger952

PHYA10H3 Lecture Notes - Lecture 3: Khanqah, Opata Language

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