Question

В начальный момент времени тело двигалось со скоростью 3 км/ч, m=1 кг. На тело произвели воздействие на протяжении 30 минут, после чего скорость увеличилась до 30 км/ч .Определить силу воздействия силы на объект?

Answer 1

A=V-V0/t=8,33-0,33/30*60=0,004 м/с2
F=m*a=1*0,004=0,004 Н

Answer 2

Given Information:

- Initial velocity of the object: 3 km/h - Mass of the object: 1 kg - Duration of the force applied: 30 minutes - Final velocity of the object: 30 km/h

Calculating the Force:

To calculate the force applied to the object, we can use Newton's second law of motion, which states that force (F) is equal to the mass (m) of an object multiplied by its acceleration (a):

F = m * a

In this case, we need to find the acceleration of the object. We can use the equation for acceleration:

a = (v - u) / t

where: - v is the final velocity of the object - u is the initial velocity of the object - t is the time duration

Let's calculate the acceleration first:

a = (30 km/h - 3 km/h) / (30 minutes)

Converting the velocities to m/s and the time to seconds:

a = ((30 km/h - 3 km/h) * (1000 m/km) / (3600 s/h)) / (30 minutes * 60 s/minute)

Simplifying the equation:

a = ((30 - 3) * 1000 / 3600) / (30 * 60)

a = (27 * 1000 / 3600) / (30 * 60)

a = (27000 / 3600) / (1800)

a = 0.25 m/s^2

Now, we can calculate the force applied to the object:

F = m * a

F = 1 kg * 0.25 m/s^2

F = 0.25 N

Therefore, the force applied to the object is 0.25 Newtons.

Please note that the calculations provided are based on the given information and assumptions made.