Question

pls answer d and e
pls
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Answer 1

Explanation:

b) u = 0 m/s

v = 35 m/s

t = 10 s

a = (v-u)/t

a = (35 - 0)/10

a = 35/10

a = 3.5 m/s²

c) t = 5s - 2s

= 3s

u = 0 m/s

v = 25 m/s

a = (v-u)/t

a = (25 - 0)/3

a = 25/3

a = 8.34 m/s²

d) At 3 sec and 7 sec

e) Distance travelled by car A = 1/2 × 10 × 35

= 175 m

Distance travelled by car B = 1/2 × 3 × 25 +( 5 × 25)

= 75/2 + 125

= 37.5 + 125

= 162.5 m

Car A is ahead by = 175 - 162.5

= 9.5 m