Question

Can someone answer 7 a and b please

Answer 1

a)1.7 ms⁻¹

b)24.75 m

Step-by-step explanation:

Acceleration (a) = Change of velocity / Time taken (t)

a = [final velocity(v)- initial velocity(u)] / t

a = (v-u)/t ⇒ v = u +at

v = 0.8 + 0.06×15 = 1.7 ms⁻¹

displacement(s) = [initial velocity(u) + final velocity(v)]/2×t

`s = (u+v)/(2) t`

`s = (0.8+1.7)/(2) 15` ⇒ 24.75 m