Position (m) A boy throws a ball vertically upwards so that its position y m at time t is as shown in Figure 19.5. 7 6 4 1 Figure 19.5 (i) Write down the position of the ball at times = 0, 0.4, 0.8, 1.2, 1.6 and 2. (ii) Calculate the displacement of the ball relative to its starting position at these times. (iii) What is the total distance travelled (a) during the rst 0.8 s (b) during the 2 s of the motion? ANSWER:- 1 Time (s) li) 3.5 m, 6 m, 6.9 m, 6m, 3.5m, 0m ii) 0m, 2.5 m, 3.4 m, 2.5m, 0m, -3.5m liii) (a) 3.4m (b) 10.3 m
Position (m) A boy throws a ball vertically upwards so that its position y m at time t is as shown in Figure 19.5. 7 6 4 1 Figure 19.5 (i) Write down the position of the ball at times = 0, 0.4, 0.8, 1.2, 1.6 and 2. (ii) Calculate the displacement of the ball relative to its starting position at these times. (iii) What is the total distance travelled (a) during the rst 0.8 s (b) during the 2 s of the motion? ANSWER:- 1 Time (s) li) 3.5 m, 6 m, 6.9 m, 6m, 3.5m, 0m ii) 0m, 2.5 m, 3.4 m, 2.5m, 0m, -3.5m liii) (a) 3.4m (b) 10.3 m
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![NEED EXPLANATION
Position (m)
A boy throws a ball vertically upwards so
that its position y m at time t is as shown in
Figure 19.5.
YA
7
6
5
4
2
1
0
Figure 19.5
1
Time (s)
(i) Write down the position of the ball at
times t = 0, 0.4, 0.8, 1.2, 1.6 and 2.
[ii] Calculate the displacement of the ball
relative to its starting position at these
times.
ANSWER:-
[iii] What is the total distance travelled
(a) during the rst 0.8 s
(b) during the 2 s of the motion?
21
li) 3.5m, 6m, 6.9m, 6m,
3.5m, 0m
lii) 0m, 2.5 m, 3.4 m, 2.5m,
0m, -3.5m
liii (al 3.4m
(b) 10.3 m](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6953344f-5ace-41a8-b589-ccd4dbc91a20%2Ffe7e11b7-7e9e-4f3e-9bee-94d7f67ddc7b%2Fsz3096w_processed.png&w=3840&q=75)
Transcribed Image Text:NEED EXPLANATION
Position (m)
A boy throws a ball vertically upwards so
that its position y m at time t is as shown in
Figure 19.5.
YA
7
6
5
4
2
1
0
Figure 19.5
1
Time (s)
(i) Write down the position of the ball at
times t = 0, 0.4, 0.8, 1.2, 1.6 and 2.
[ii] Calculate the displacement of the ball
relative to its starting position at these
times.
ANSWER:-
[iii] What is the total distance travelled
(a) during the rst 0.8 s
(b) during the 2 s of the motion?
21
li) 3.5m, 6m, 6.9m, 6m,
3.5m, 0m
lii) 0m, 2.5 m, 3.4 m, 2.5m,
0m, -3.5m
liii (al 3.4m
(b) 10.3 m
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