1. The diagram bel ow gives the velocity-time graph for a particle travelling along the х-ахis. 60 V(m/s) 40 20 10 30 40 50 t (s) Calculate: (i ) the accelerati on during the first 10s. (ii ) the total di stance travelled. (iii) the deceleration during the last 10s. 20

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2.
A race driver has made a pit stop to refuel. After refueling, he leaves the pit area
with an acceleration whose magnitude is 6.0 ms-2, and after 4.0 s, he enters the
main speedway. At the same instant, another race car that is on the speedway and
travelling at a constant speed of 70.0 ms-1 overtakes and passes the entering car.
If the entering car maintains its acceleration, how much time is required for it to
catch the other car?
Transcribed Image Text:2. A race driver has made a pit stop to refuel. After refueling, he leaves the pit area with an acceleration whose magnitude is 6.0 ms-2, and after 4.0 s, he enters the main speedway. At the same instant, another race car that is on the speedway and travelling at a constant speed of 70.0 ms-1 overtakes and passes the entering car. If the entering car maintains its acceleration, how much time is required for it to catch the other car?
1.
The diagram below gives the velocity-time graph for a particle travelling along the
х-ахis.
60
V(m/s)
40
20
10
20
30
40
50
t (s)
Calculate:
(i ) the acceler ati on during the first 10s.
(ii ) the total di stance travelled.
(iii) the deceleration during the last 10s.
Transcribed Image Text:1. The diagram below gives the velocity-time graph for a particle travelling along the х-ахis. 60 V(m/s) 40 20 10 20 30 40 50 t (s) Calculate: (i ) the acceler ati on during the first 10s. (ii ) the total di stance travelled. (iii) the deceleration during the last 10s.
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