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klemol [59]
3 years ago
14

Two cars next to each other start moving in the same direction from rest, car A accelerates at m/s2 4 for 10 s and then travels

at a constant speed, while car B accelerates at m/s2 5 until it reaches 25 m/s and then maintains This speed. What is the distance between the two cars when t = 15s?​
Physics
1 answer:
Andre45 [30]3 years ago
8 0
The answer is 145 because 100 mph is equal to 25th so 145
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The pressure on a volume of liquid V = 1.0 mº at the surface is approximately equal to the atmospheric pressure Patm = 1.00 x 10
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Answer:-2.86*10⁻⁴

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Plugging in your numbers, you should get ΔV = (-2.29*10⁷*1) / (8*10¹⁰) = -2.86*10⁻⁴

ΔP = P₂-P₁  ----> ΔP = 2.30*10⁷ - 1.00*10⁵ = 2.29*10⁷

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What does MA mean for you in real life?
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Why do raindrops fall with a constant speed during the later stages of their descents?
BartSMP [9]
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What is the momentum of a two-particle system
Harlamova29_29 [7]

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8 0
2 years ago
A small box is held in place against a rough vertical wall by someone pushing on it with a force directed upward at 27 ∘ above t
ycow [4]

Answer:

Explanation:

Applied force, F = 18 N

Coefficient of static friction, μs = 0.4

Coefficient of kinetic friction, μs = 0.3

θ = 27°

Let N be the normal reaction of the wall acting on the block and m be the mass of block.

Resolve the components of force F.

As the block is in the horizontal equilibrium, so

F Cos 27° = N

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As the block does not slide so it means that the syatic friction force acting on the block balances the downwards forces acting on the block .

The force of static friction is μs x N = 0.4 x 16.04 = 6.42 N   .... (1)

The vertically downward force acting on the block is mg - F Sin 27°

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Now by equating the forces from equation (1) and (2), we get

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m = 1.49 kg

Thus, the mass of block is 1.5 kg.  

6 0
3 years ago
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