Wyendrewidn
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Sagot :

[tex]{ \tt{Formula = \frac{v - v _{0}}{t} }}[/tex]

1. A slug travelling at 3 mm/h,East decided to race the slug next to him increasing his velocity 5 mm/h,East in one hour.What was the slug's acceleration

Given

a = ?

V = 5 mm/h east

[tex] { \rm{V_0 = 3mm/h \: east}}[/tex]

t = 1 hr

Solution

[tex] { \tt{\frac{v - v _{0}}{t} }} = { \tt{\frac{5mm/h - 3mm/h}{1h} }} \\ [/tex]

[tex]{ \boxed{ \tt{a = 2mm/h² east}}}[/tex]

2. A driver starts his parked car within 5 seconds reaches a speed of 60 km/h as he travels east. What is the acceleration?

Given

a = ?

V = 60 km/h

[tex] { \rm{V_0 = 0 \: km/h \ east}}[/tex]

t = 5 s

Solution

[tex]{ \tt{\frac{v - v _{0}}{t} }} = { \tt{\frac{60km/h - 0km/h}{5s} }} \\ [/tex]

[tex]{ \boxed{ \tt{a =12 \: km/h² \: east}}}[/tex]

3. An object at rest started to travel at 10 m/s in 10 s ,what is the accelaration of an object?

Given

a = ?

V = 10 m/s south

[tex] { \rm{V_0 = 0 \: m/s \ south}}[/tex]

t = 10 s

Solution

[tex]{ \tt{\frac{v - v _{0}}{t} }} = { \tt{\frac{10m/s- 0 \: m/s}{10s} }} \\ [/tex]

[tex]{ \boxed{ \tt{a =1 \: k \: m/s² \: south}}}[/tex]

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