2019 - JAMB Physics Past Questions and Answers - page 11
101
If the time of flight is 96seconds, calculate the horizontal range through the point of projection.
A
84400m
B
69000m
C
61440m
D
24000m
correct option: c
Time of flight, T = 96s
R = (Ucosθ) T = 640 × 96 = 61,440m
R = 61,440m
Users' Answers & Comments102
Which of the following is consistent with Charles' law?
I.
II.
III.
IV.
A
I
B
II
C
III
D
IV
correct option: c
Charles's law is an experimental gas law that describes how gases tend to expand when heated. A modern statement of Charles's law is: When the pressure on a sample of a dry gas is held constant, the Kelvin temperature and the volume will be in direct proportion.
V1/T1 = V2/T2
The correct graph is volume against 1/ temperature where the temperature is in Celsius.
Users' Answers & Comments