Answer:
100 m
Explanation:
44 km/h = 12.2 m/s
110 km/h = 30.6 m/s
Given:
Δx = 16 m
v₀ = 12.2 m/s
v = 0 m/s
Find: a
v² = v₀² + 2aΔx
(0 m/s)² = (12.2 m/s)² + 2a (16 m)
a = -4.67 m/s²
Given:
v₀ = 30.6 m/s
v = 0 m/s
a = -4.67 m/s²
Find: Δx
v² = v₀² + 2aΔx
(0 m/s)² = (30.6 m/s)² + 2 (-4.67 m/s²) Δx
Δx = 100 m
Explanation:
Given that,
Weight of the friend, W = 600 N
When the friend sits on the metal frame it bends downward 4 cm, we can say that the compression in the it is 4 cm or 0.04 m
To find,
Spring constant for this chair or k
Solve :
The weight of an object is equal to the force exerted by the gravitational force, F = 600 N
According to Hooke's law, the force exerted by the spring is given by :
F = kx
k is the spring constant


k = 15000 N/m
Therefore, the spring constant of the spring is 15000 N/m.
Answer:
because liquid and solid states of water possesses intermolecular force of attraction which held the molecules of water in fixed
Gravity increases as mass increases.
Gravity decreases when distance decreases
I hope I help.