Work sheet 2 (chapter 3)
Q1: trace car slows down from a speed of 31.0 m/s to a speed of 12.0
m/s over a distance of 380 m
a)how long does this take ?
b)what is the value of this acceleration ?
Q2:acar started from the rest and accelerated at 10.0m/s2 how far does
it travel in 2 s ??
Q3: starting from rest ,a boat increases its speed to 5 m/s with
constant acceleration
a)if it takes the boat 4 s to reach this speed how far has it travelled ?
b) what is the boats average speed ?
Q4:astone is thrown upward from ground level with an initial velocity
of 10 m/s
a)what is the velocity of the stone after 0.5 s ?
b) how high above ground level is the stone after 0.5 s ?
Q5: a stone is thrown down ward with an initial velocity 10m/s what is
the velocity of the stone after 0.5 s
Q6 : write the scientific term :
a)the study of motion and its causes is called ____________________
b)the study of the motion of objects is called ______________________
c) a particular point on line is __________________________________
d)different between the final position vector and the initial vector _____
e)the absolute value of the displacement vector ____________________
f) the ratio of displacement per time interval is the _________________
g)the velocity that as time derivative of the displacement ____________
h)the absolute value of the velocity vector ________________________
i)defined as the limit of the average acceleration as the time interval
approaches zero______________________________________________
j)the velocity change per time interval is __________________________
k)motion under the sole influence of gravitational acceleration ________