Question

К неподвижному телу массой 20 кг приложили постоянную силу 6Н. Какую скорость приобретет тело за 15 с.

Answer 1

F=ma
a=F/m=6/20=0.3м/с2
v=at=0.3*15=4.5м/с
 ответ 4,5м/с

Answer 2

Скорость V=a*t=F*t/m=6*15/20=4,5 м/с Путь S=F*t^2/2*m=6*225/40=33,75м

Answer 3

Problem Statement

You have a stationary object with a mass of 20 kg to which a constant force of 6 N is applied. You want to know the velocity the object will acquire after 15 seconds.

Solution

To find the velocity acquired by the object, we can use the formula: v = u + at where: - v = final velocity - u = initial velocity (in this case, the object is initially at rest, so u = 0) - a = acceleration - t = time

Calculation

The force applied to the object can be used to find the acceleration using Newton's second law: F = ma where: - F = force applied - m = mass of the object - a = acceleration

From the given information: - Mass of the object, m = 20 kg - Force applied, F = 6 N - Time, t = 15 s

We can calculate the acceleration using the formula a = F/m and then use it to find the final velocity using the formula v = u + at.

Calculation Steps

1. Calculate the acceleration, a: - a = F/m - a = 6 N / 20 kg - a = 0.3 m/s^2

2. Calculate the final velocity, v: - v = u + at - Since the object is initially at rest, u = 0 - v = 0 + (0.3 m/s^2) * 15 s - v = 4.5 m/s

Answer

The object will acquire a velocity of 4.5 m/s after 15 seconds.

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