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Kinematics

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Submitted By Fearless12
Words 1684
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UNIVERSITI TUNKU ABDUL RAHMAN
Centre
Course
Year/ Trimester
Session

: Centre for Foundation Studies (CFS)
: Foundation in Science
: Year 1 / Trimester 1
: 201505

Unit Code
Unit Title
Lecturer

: FHSC1014
: Mechanics
:

Tutorial 1: Introduction.
1.

How many significant figures do each of the following numbers have: (a) 214, (b) 81.60,
(c) 7.03, (d) 0.03, (e) 0.0086, (f) 3236, and (g) 8700?

2.

The diameter of the earth is about 1.27 x 107 m. Find its diameter in
(a) Millimeters,
(b) Megameters,
(c) Miles

3.

Express the following using the prefixes: (a) 1×106 volts, (b) 2×106 meters, (c) 6×103 days, (d) 18×102 bucks, and (e) 8×109 pieces.

4.

The speed limit on an interstate highway is posted at 75 mi/h. (a) What is this speed in kilometers per hour? (b) In feet per second? (c) In meter per second? [(a) 121 km/h,
(b) 110 ft/s, (c) 33.5 m/s]

5.

Five length have been measured and recorded as follows:
L1 = 3.427m L2 = 3.5m
L3 = 0.333m L4 = 32.000m
(a)
(b)
(c)
(d)
(e)
(f)
(g)

6.

What is the uncertainty is there in each measurement?
What is the result if L1 + L2? [6.9 m]
What is the result if L1 + L3? [3.760 m]
What is the result if L1 – L3? [3.094 m]
What is the result if L2 – L1? [0.1 m]
What is the result if L1  L2? [12 m2]
What is the result if L4  L3? [96.1]

What is the volume (with the correct number of significant figures) of rectangular box as shown in figure below? [0.07 m3]
6×102 mm

20.0 cm

0.55 m

7.

The variables x, v, and a have the dimensions of [L], [L]/[T], and [L]/[T]2, respectively.
These variables are related by an equation that has the form vn = 2ax, where n is an integer constant (1, 2, 3, etc.) without dimensions. What must be the value of n, so that both sides of the equation have the same dimensions? Explain your reasoning. [2]

8.

Newton’s law of

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