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fredd [130]
3 years ago
8

A boat moves initially at 10 m/s, then accelerates at 2 m/s^2 for 10 s. What is the velocity of the boat after 10 s?

Physics
1 answer:
Fudgin [204]3 years ago
6 0

Answer:

30 m/s

Explanation:

A boat moves initially at 10 m/s

The boat accelerates at 2 m/s^2 for 10 seconds

We are required to calculate the final velocity (v)

Therefore the velocity of the boat can be calculated as follows

v = u + at

u= 10 m/s

a= 2 m/s^2

t= 10 seconds

v= 10 + 2(10)

v= 10 + 20

= 30 m/s

Hence the velocity of the boat after 10 seconds is 30 m/s

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Answer:

Explanation:

Given

Length of cable L=620 m

Diameter of cable d=1.5 cm

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time taken to cover distance L

t=\frac{T}{2}=7 s

velocity

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(b)Relation between velocity of wave Tension is

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T=v^2\cdot \mu

T=(88.57)^2\cdot \frac{m}{L}

T=(88.57)^2\cdot \frac{\rho AL}{L}

where \rho =density\ of\ steel =7850 kg/m^3

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T=10,883 N

5 0
3 years ago
A 4-kg ball has a momentum of 12 kg∙m/s. what is the ball's speed?
Karolina [17]
M= 4kg
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7 0
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Please help with 1 and 4
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Number 4 is : a light hour is a measure of time in space used to calculate the length of time between one object to another and one light hour equals 1.079 × 109 kilometers or 1.079e+9
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A ramp is 2.8 m long and 1.2 m high. How much power is needed to push a box up the ramp in 4.6 s with a force of 96 N?
tino4ka555 [31]
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4 years ago
The car was initally traveling at 25 m/s. The car slows with a negative acceleration as shown. How long does it take the car to
Karolina [17]

Answer:

<h2>t = 2.35s</h2>

Explanation:

Using one of the equation of motion expressed as v = u+at where;

v is the final velocity = 2.0m/s

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a is the acceleration = -a (since the acceleration is negative)

t is the time taken

Substituting the given parameters into the formula above;

2.0 = 25-9.81t

subtract 25 from both sides

2.0 - 25 = 25-9.81t - 25

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