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7nadin3 [17]
2 years ago
11

B

Physics
1 answer:
crimeas [40]2 years ago
7 0

The force needed to accelerate a 2500 kg car at a rate of 4m/s² will be  10,000 N.Option B is correct.

<h3>What is force?</h3>

Force is defined as the push or pull applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.

Given data;

Force,F = ?

Mass,m = 2500 kg

Acceleration,a = 4 m/s²

The force is found as;

F=ma

F=2500 kg × 4 m/s²

F= 10,000 N

The force needed to accelerate a 2500 kg car at a rate of 4m/s² will be  10,000 N.

Hence option B is correct.

To learn more about the force refer to the link;

brainly.com/question/26115859

#SPJ1

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A ladder rests against a vertical wall at a point 12 feet from the floor. The angle formed by the ladder and the floor is 63°. C
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Answer:

length of the ladder is 13.47 feet

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angle between ladder and the wall is 26.95°

Explanation:

given data

height h  = 12 feet

angle 63°

to find out

length of the ladder ( L) and length of wall to ladder ( A) and angle between  ladder and the wall

solution

we consider here angle between base of wall and floor is right angle

we apply here trigonometry rule that is

sin63 = h/L

put here value

L = 12 / sin63

L = 13.47

so length of the ladder is 13.47 feet

and

we can say

tan 63 = h / A

put here value

A = 12 / tan63

A = 6.10

so base of wall to latter distance 6.10 feet

and

we say here

tanθ = 6.10 / 12

θ = 26.95°

so angle between ladder and the wall is 26.95°

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