Question

За какое время тела массой 50 кг под действием силы в 100H изменило свою скорость от 15м/с до20м/с

Answer 1

A=F/m=100/50=2 (м/с^2)
t=(v1-v0)/a=(20-15)/2=2,5 (с)
t=2,5 (с)

Answer 2

Calculating Change in Velocity

To calculate the change in velocity of a body with a mass of 50 kg under the influence of a force of 100 N, we can use the formula:

Change in velocity = (Force × Time) / Mass

Given: - Mass (m) = 50 kg - Force (F) = 100 N - Initial velocity (u) = 15 m/s - Final velocity (v) = 20 m/s

We can calculate the change in velocity using the formula:

Change in velocity = (Force × Time) / Mass

First, we need to find the time it took for the body to change its velocity from 15 m/s to 20 m/s under the influence of the given force.

Calculating Time

To find the time taken for the change in velocity, we can use the formula:

Change in velocity = Acceleration × Time

Given: - Initial velocity (u) = 15 m/s - Final velocity (v) = 20 m/s

Using the formula: Change in velocity = v - u

Change in velocity = 20 m/s - 15 m/s = 5 m/s

Now, we can calculate the time taken using the formula: Time = Change in velocity / Acceleration

However, the acceleration is not provided in the given information, so we are unable to calculate the time taken for the change in velocity.

Unfortunately, without the acceleration, it's not possible to calculate the time taken for the change in velocity. If you have the acceleration value, please provide it, and I can help you calculate the time taken.