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just olya [345]
4 years ago
14

I am in plato cuzz wauup what u doing

Physics
1 answer:
Irina-Kira [14]4 years ago
8 0
Yoohoo dudio!!! whatz up??!!

MARK AS THE BRAINLIEST SWEETY!!
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Can I have some help please with any of the questions
vovangra [49]

6b: impulse is change in momentum. Change in momentum p=m[v(final)-v(initial). Final velocity is zero and initial velocity is the one you calculated before impact: -15.7 since it’s going down. Now plug in numbers and you get 78.5 in the upward direction.

6c: change in momentum p=Ft. we already calculated change in momentum. So plug it into equation and solve for t. 78.5/655= 0.119 s

Apply the same idea for question 7. Hope this helped

3 0
3 years ago
A student takes the elevator up to the fourth floor to see her favorite physics instructor. She stands on the floor of the eleva
never [62]

Answer:

N = 1364 N

Explanation:

given data

accelerate upward = 5.70 m/s²

mass = 88.0 kg

solution

normal force is in upward direction so, weight of the student in downward direction and acceleration is in upward direction so formula is express as

N - mg = ma        ...........................1

N = m × (g+a)

put here value

N = 88.0 × (9.8 + 5.70)

N = 1364 N

8 0
3 years ago
PLEASE HELP ME ASAP!!!!!!
Kay [80]

Answer:

c. The particle is moving in a positive direction, and its speed is decreasing.

4 0
3 years ago
If a stationary object experiences a downward force of 12 n and an upward force of 12 n, what is the motion of the object?
mojhsa [17]
The motion would not move at all, because the forces that are acting on it are equal and are acting in opposite directions
3 0
3 years ago
Magnitude of u = 15, direction angle θ = 35° Magnitude of v = 18, direction angle θ = 60° Find the magnitude and direction angle
djverab [1.8K]

Answer:

32.225  and angle is 48.7 degree.

Explanation:

u = 15, θ = 35 degree

v = 18, θ = 60

First represent the u and v in vector form.

u = 15 (Cos 35 i + Sin 35 j ) = 12.287 i + 8.6 j

v = 18 ( Cos 60 i + Sin 60 j ) = 9 i + 15.6 j

The sum of the two vectors is given by

u + v = 12.287 i + 8.6 j + 9 i + 15.6 j = 21.28 i + 24.2 j

Magnitude of u + v = \sqrt{21.28^{2}+24.2^{2}} = 32.225

Let Ф be the angle

tan Ф = 24.2 / 21.28

Ф = 48.7 degree

5 0
3 years ago
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