All categories

3 years ago

Raju is cycling at a speed of 30km/h. He applies brakes and stops at a junction in 10s. Calculate the acceleration.

Mathematics

1 answer:

Sedbober [7]3 years ago

7 0

Answer:

Acceleration = 3m/s²

Step-by-step explanation:

Here ,

Initial velocity = 30km/h

Final velocity = 0km/h

Time = 10s

Acceleration = ?

We know ,

A = v-u/t

or , A = 0-30/10

or, A = 30/10

A = 3m/s²

Therefore the acceleration is 3m/s²

You might be interested in

Give the following equations determine if the lines are parallel perpendicular or neither

GaryK [48]

In order to determine whether the equations are parallel, perpendicular, or neither, let's simply each equation into a slope-intercept form or basically, solve for y.

Let's start with the first equation.

$\frac{6x-5y}{2}=x+1$

Cross multiply both sides of the equation.

$6x-5y=2(x+1)$ $6x-5y=2x+2$

Subtract 6x on both sides of the equation.

$6x-5y-6x=2x+2-6x$ $-5y=-4x+2$

Divide both sides of the equation by -5.

$-\frac{5y}{-5}=\frac{-4x}{-5}+\frac{2}{-5}$ $y=\frac{4}{5}x-\frac{2}{5}$

Therefore, the slope of the first equation is 4/5.

Let's now simplify the second equation.

$-4y-x=4x+5$

Add x on both sides of the equation.

$-4y-x+x=4x+5+x$ $-4y=5x+5$

Divide both sides of the equation by -4.

$\frac{-4y}{-4}=\frac{5x}{-4}+\frac{5}{-4}$ $y=-\frac{5}{4}x-\frac{5}{4}$

Therefore, the slope of the second equation is -5/4.

Since the slope of each equation is the negative reciprocal of each other, then the graph of the two equations is perpendicular to each other.

5 0

1 year ago

Turn 0.68 into a fraction in simplest form

sattari [20]

Since .68 is 68/100, you can simplify to 17/25.

7 0

3 years ago

Read 2 more answers

The ratio of girls to boys in art class is 4:5 if there are 32 girls how many boys are there?

dem82 [27]

Answer:

there are 40 boys

Step-by-step explanation:

32/4=8 5*8=40

8 0

3 years ago

Describe the transformations from the parent y=|x-2|+1 urgent pls answer.

Zanzabum

Answer:

find he domain by finding where the equation is defined. the range is the set of values that correspond with the domain.

8 0

2 years ago

La suma de 3 más el doble de un número es igual a ese número pero con signo negativo.llamemos x al número desconocido.

nydimaria [60]

Answer:

x = -1

Step-by-step explanation:

3 + 2x = -x

- 2x - 2x

3 = -3x

divides 3 por ambos lados del signo igual

x = -1

4 0

3 years ago