Introduction to Applied Physics 1 (BSCP1103)
College of Technology (COLTECH)
Semester: First Semester
Level: 200
Year: 2015
REPUBLIC OF CAMEROON The UNIVERSITY OF BAMENDA
Peace - Work – Fatherland P.O. BOX 39 Bambili
First Semester Examination, 2014/2015
School/Faculty: COLTECH Department: Basic Sciences Lecturer(s): Pr TABOD Charles
Course Code: BSCP1103 Course Title: Introduction to
Applied Physics 1 Semester: l
Date: 19/03/2015 Hall: 1,2,3 Time: .8,00-10.00 '
Instructions: Answer
ALL
Questions
Question l(5marks) .
A round stone initially at rest and weighing 100 N rolls down a curved path. The radius of
curvature of the path is R= 3 m. The bottom of the path is .at a vertical height of H. if H. = 3 m.
(a) neglecting friction, find the speed of the stone, at the bottom of the path
(b) find the work done by the friction force on the stone if the speed of the stone at the bottom of
the path is 3 m/s
Question 2(5marks)
(a) Derive expressions for the velocity and displacement of a particle undergoing linear motion at
constant acceleration
(h) Determine expressions for the angular velocity and the angle of rotation for a body in
rotational motion at constant angular acceleration
Question 3/5marks)
A box is dragged along a smooth horizontal, surface by a force of 50 N acting at an angle of 30° to
the direction of motion. Find the work done by each of the forces acting on the box
Question 4(5marks)
An object A, mass m
A
-5 kg moving at a velocity of V
A1
= 2 m/s parallel to the x- axis, collides
with another mass B, mass m
B
= 3 kg and initially at rest. It the velocity of A, v
A2
after, collision is
1 m/s and at 30° to the initial direction, what is the velocity of B, V
B2
?
E N. D
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