Question

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Answer 1

Answer:

18000km/h² is the required acceleration of the car .

Explanation:

According to the Question

It is given that ,

Initial velocity ,u = 30km/h

Final velocity ,v = 90km/h

Time taken ,t = 0.2min

we need to calculate the acceleration of the car .

Firstly we convert the unit here

Minutes into hour

➻ 1 hour = 60min

➻ 1min = 1/60 hour

➻ 0.2min = 1/60× 2/10

➻ 0.2 min = 2/600 = 1/300 hour.

As we know that acceleration is defined as the rate of change in velocity at per unit time.

a = v-u/t

where,

a denote acceleration

v denote final velocity

u denote initial velocity

t denote time taken

Substitute the value we get

➻ a = 90-30/ ÷ 1/300

➻ a = 60×300/1

➻ a = 18000km/h².

Hence, the acceleration of the car is 18000km/h².

Answer 2

Answer:

$\huge \mathbb \pink{ANSWER}$

$\huge{\boxed{\tt \red{18000km/h²}}}$

$\huge \mathbb \purple{\underline{€XPLANATIÖN}}$

According to the Question

It is given that ,

Initial velocity ,u = 30km/h

Final velocity ,v = 90km/h

Time taken ,t = 0.2min

we need to calculate the acceleration of the car .

Firstly we convert the unit here

Minutes into hour

➻ 1 hour = 60min

➻ 1min = 1/60 hour

➻ 0.2min = 1/60× 2/10

➻ 0.2 min = 2/600 = 1/300 hour.

As we know that acceleration is defined as the rate of change in velocity at per unit time.

a = v-u/t

where,

a denote acceleration

v denote final velocity

u denote initial velocity

t denote time taken

Substitute the value we get

➻ a = 90-30/ ÷ 1/300

➻ a = 60×300/1

➻ a = 18000km/h².

• Hence, the acceleration of the car is 18000km/h².

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