3 years ago

I need this asap pls

Physics

1 answer:

user100 [1]3 years ago

3 0

Answer:

2 i think

Explanation:

You might be interested in

: A 70 kg man and a 12 kg sled are on the frictionless ice of a frozen lake, 25 m apart but connected by a rope of negligible ma

e-lub [12.9K]

Answer:

$x_1 = 3.74m$

Explanation:

given,

mass of man = 70 kg

mass of sled = 12 kg

F = m a_s

$a_s = \dfrac{F}{m}$

$a_s = \dfrac{8.2}{12}$

$a_s = 0.68\ m/s^2$

$F = m a_m$

$a_m = \dfrac{F}{m}$

$a_m = \dfrac{8.2}{70}$

$a_m = 0.12\ m/s^2$

$x_1+x_2 = 25$

$\dfrac{1}{2}a_ct^2+ \dfrac{1}{2}a_mt^2 = 25$

$(a_c+a_m)t^2=50$

$(0.12+0.68)t^2=50$

$t = \sqrt{\dfrac{50}{0.8}}$

t = 7.90 s

$x_1 = \dfrac{1}{2}a_ct^2$

$x_1 = 0.5\times 0.12 \times 7.90^2$

$x_1 = 3.74m$

5 0

3 years ago

The law of conservation of mass states that _______________________________.

xenn [34]

Energy cannot be created nor be destroyed

3 0

2 years ago

Daniel Levinson found that men and women

lesya692 [45]

Answer:

Option D. is correct

Explanation:

Daniel Levinson, a psychologist developed an adult development theory. This theory was referred to as the Seasons of Life theory. This theory describes the stage in which a person leaves adolescence and start making choices about adult life.

Daniel Levinson found that men and women go through the same stages of development, differ in terms of their social roles and identities, and deal with the development tasks in each stage differently.

Option D. is correct

7 0

3 years ago

an object has an acceleration of 12 m/s/s. if the mass were doubled then what is the new acceleration?

Elanso [62]

Answer:

Explanation:

acceleration and mass are indirectly proportional so as the mass increases the acceleration will decrease since it doubles them the acceleration withh ecrease to the half :)

3 0

2 years ago

An artillery shell is fired 1.75m above the ground at a 30.0° angle and an initial velocity of 625 m/s. Assume no air resistance

Daniel [21]

The answer is D that would be the right one !!

4 0

3 years ago

I need this asap pls ​

I need this asap pls