Engineering School of Information and Digital Technologies
MECHANIC 101

Fall 2015
Tutorial 4 Newtons Laws
1. A 3000 kg lorry is travelling at 40km/h on a level road. If it is brought to rest with uniform
retardation in 15s. Find:
a. The retarding force
b. The distance travelled
2. Find the force exerted on the floor of a lift by a pers
Engineering School of Information and Digital Technologies
MECHANIC 101

Fall 2015
1. A 3000 kg lorry is travelling at 40km/h on a level road. If it is brought to rest with uniform
retardation in 15s. Find:
a. The retarding force
b. The distance travelled
2. Find the force exerted on the floor of a lift by a person having a mass of 90kg
Engineering School of Information and Digital Technologies
MECHANIC 101

Fall 2015
Tutorial 6 Statics II Moments
1. A lever AB is 3.5m long and is supported at end A. A mass of
6kg is suspended at point C 0.9m from end A. Calculate the
vertical force required at B to hold the lever in horizontal
equilibrium.
2. A uniform horizontal leve
Engineering School of Information and Digital Technologies
MECHANIC 101

Fall 2015
NFA 2168
Mechanical Engineering & Science
Dr Paul Bills
Room: CE3/14
p.j.bills@hud.ac.uk
Tutorial 01 Vector Representation of
Forces
From notes:
Space Diagram: A sketch showing
the physical conditions of the
problem.
FreeBody Diagram: A sketch showing
on
Engineering School of Information and Digital Technologies
MECHANIC 101

Fall 2015
Statics M Ma ments
1. A leverAB is 3.5m long and is supported at eudA. A mass of
15kg is suspended at peiut (3 0.9111 from end A. Calculate the
vertical force required at B te held the lever in horizontal
equilibrium.
C ' C? I“ +
z
, v
A 52—.
\.
ie——'
Engineering School of Information and Digital Technologies
MECHANIC 101

Fall 2015
Tutorial 7 Work Power Energy
1. A force, F acting on a body in the direction of its motion varies as follows for a distance, s
from its start point.
F (N)
200
380
470
500
420
320
S (m)
0
10
20
30
40
50
Find:
a. The average force
b. Work done over the 50m
Engineering School of Information and Digital Technologies
MECHANIC 101

Fall 2015
1. A force, F acting on a body in the direction of its motion varies as follows for a distance, 5
from it’s start point.
F (N) _ 200 380 470 500 420 320
S (m) r 0 10 20 30 40 50
Find:
a. The average force
b. Work done over the 50m.
15
FCM) 9.00 380 “'10
Engineering School of Information and Digital Technologies
MECHANIC 101

Fall 2015
Tutorial 14 Simple Harmonic Motion
1. A harmonic motion has an amplitude of 0.7m and a period 1.3s. Find:
a. The frequency of oscillation
b. The maximum velocity
c. The maximum acceleration
2. Part of a mechanism moves with SHM and has an amplitude of 0.2
Engineering School of Information and Digital Technologies
MECHANIC 101

Fall 2015
Simple Harmonic Motion
1. A harmonic motion has an amplitude of 0.7m and a period 1.33. Find:
a. The frequency of oscillation
b. The maximum velocity
c. The maximum acceleration
2. Part of a mechanism moves with SHM and has an amplitude of 0.2m and a freq