Answer:
Same as before.
Explanation:
we can use momentum conservation to solve the problem.
Let mass of child be m and of the sled be M. Also let both have initial velocity u.
since, child fells off on the sled it will still have same velocity of ''u''.
By momentum conservation we have,
(M + m) x u = m x u + M x v
⇒ Mu=Mv
⇒ u=v
Hence, velocity of the sled remains the same.
The force = 0.3 * 9.8 = 2.94
x = 0.13
k = 2.94/0.13
k = 22.6 N/m
Answer:
option D
(2.6 , 3.1 )
Explanation:
First quadrant is where x and y values are positive.
Given in the question,
magnitude of vector = 4
angle at which vector is incline from x-axis = 50°
<h3>Vertical component (y component)</h3><h3>
sinΔ = opp / hypo</h3>
sin(50) = vertical / 4
vertical = sin(50)(4)
= 3.06
≈ 3.1
<h3>Horizontal component (x component)</h3>
cosΔ = adj / hypo
cos(50) = horizontal / 4
horizontal = cos(50)(4)
= 2.57
≈ 2.6
Answer:
If your driving, the car is moving from your home to school, so the car is in motion. Using the pedals on a car, which gives it gas or the breaks, is force because it keeps the car moving, and or can stop it.
Explanation:
Motion is when an object moves from one place to another, while force is what causes an object to move or to stop moving.
I hope this helps and that I answered you question correctly!