What happens when velocity and acceleration are not in the same direction?

At time t = 0 a 2230-kg rocket in outer space fires an engine that exerts an increasing force on it in the +x-direction. This fo

Anastasy [175]

Answer:

$I=4090.8Ns$

Explanation:

Since our equation is $F=At^2$ and F=781.25 N when t=1.49s, we have:

$A=\frac{F}{t^2}=\frac{781.25N}{(1.49s)^2}=351.9N/s^2$

The impulse of a force is $I=\int\limits {F} \, dt$ , so for our case we have:

$I=\int\limits^{t_f}_{t_i} {At^2} \, dt=A (\frac{t_f^3}{3}-\frac{t_i^3}{3})$

For our case $t_i=2s$ and $t_f=2s+1.5s=3.5s$ , so we have:

$I = (351.9N/s^2) (\frac{(3.5s)^3}{3}-\frac{(2s)^3}{3})=4090.8Kgm/s$

7 0

4 years ago

At one end of a production line, Isaac puts peaches into cans on a conveyor belt. He fills 18 cans per minute. As soon as Isaac

AURORKA [14]

Answer: Long answer...

<em>Explanation:</em> As soon as Isaac has filled 670 cans on the conveyor belt, Albert starts putting lids on the cans at the other end of the production line. As Albert finishes closing each can, he moves up along side the conveyor belt to meet the next can. Albert puts lids on 50 cans per minute.

8 0

3 years ago

Please solve the Problem.

prisoha [69]

The scalar reading during the process is 170. 5 Newton

<h3>How to determine the scalar reading</h3>

force = mass × acceleration

Given the mass = 55kg

In finding the acceleration, use the first equation of motion

v = u + at

u = 0

t = 2s

v = 6.5 m/s

Substitute the values

6.5 = 0 + 2a, make 'a' the subject

a = 6. 5÷ 2 = 3. 1 m/s²

Substitute the value of 'm' and 'a' in the original equation

F = 55× 3.1 = 170. 5 Newton

Hence, the scalar reading during the process is 170. 5 Newton

Learn more about force here:

brainly.com/question/13164598

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7 0

2 years ago

A ski resort consists of a few chairlifts and several interconnected downhill runs on the side of a mountain, with a lodge at th

Aleks04 [339]

A sketch of the junction between one chairlift and two runs is shown in the image attached below.
For this ski resort, it ultimately implies that the total number of lifts that are used in any closed loop would be equal to zero in accordance with Kirchhoff's loop rule.

<h3>What is Kirchhoff's loop rule?</h3>

Kirchhoff's loop rule is also referred to as Kirchhoff's second law or Kirchhoff's voltage law, and it states that the algebraic sum of all the electric potential differences around any closed loop is equal to zero.

<h3>How to connect two runs in series?</h3>

Since the chairlifts are analogous to batteries, and the runs are analogous to resistors, the two runs would represent resistors that are connected in series with the lift, which represents the battery. Similarly, these three runs can also be connected in parallel by altering the positions of the runs with the battery.

For this ski resort, it ultimately implies that the total number of lifts that are used in any closed loop would be equal to zero in accordance with Kirchhoff's loop rule.

Read more on Kirchhoff's loop rule here: brainly.com/question/15003023

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