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Pavel [41]
3 years ago
5

What is a difference between an object's speed and velocity?

Physics
2 answers:
alisha [4.7K]3 years ago
8 0

Answer:

velocity is the magnitude and the direction and speed is the distance something traveled in a certain amount of time

SOMETHING:

hope this helps

Aleks04 [339]3 years ago
5 0

Answer:

.

Explanation:

Speed, being a scalar quantity, is the rate at which an object covers distance. ... On the other hand, velocity is a vector quantity; it is direction-aware. Velocity is the rate at which the position changes. The average velocity is the displacement or position change (a vector quantity) per time ratio.

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A 6.60-kg block slides with an initial speed of 1.51 m/s up a ramp inclined at an angle of 26.4 ∘ with the horizontal. The coeff
Lilit [14]

Answer:

s= 0.11 m

Explanation:

Given that

m = 6.6 kg

Initial velocity ,u= 1.51 m/s

Angle ,θ = 26.4°

Coefficient of friction ,μ = 0.57

The final velocity of the block  = 0 m/s

s=Distance cover by block coming to rest

Now by using energy conservation

\left (\mu mgcos\theta+mgsin\theta \right )s =\dfrac{1}{2}mu^2

\left (\mu gcos\theta+gsin\theta\right)s =\dfrac{1}{2}u^2

2 s (μ g cosθ + g sinθ) =  u²

2 x s x 10 (0.57 x cos26.4° + sin26.4°) = 1.51²

Now by solving above the equation

we find ,s= 0.11 m

Therefore the answer will be 0.11 m.

7 0
4 years ago
A stomp rocket takes 2. 4 seconds to reach its maximum height, what was its initial velocity?.
Anna71 [15]

Answer:

in projectile motion at maximum height v = 0

we can use the suvat equation to find v(initial)

since in this case v(final) is 0

t = 2.4 seconds

we need to find v(initial) or u

v = u+at

u = v- at

in this case a = g (gravity) = -9.81

u = 0 - (-9.81 * 2.4)

u = 9.81 * 2.4

the negatives become positive sin it’s a double negative ( - - = +)

5 0
3 years ago
Which two parts do the capillaries surround?
Elis [28]

Answer:

do we have to choose 2 answers here?

6 0
3 years ago
Read 2 more answers
If the length of pendulum is halved, the energy of the pendulum
zzz [600]

Answer:

B. Doubles

Explanation:

if length is halved then more energy is required to make the pendulum rotate. So energy of the pendulum is doubled

7 0
3 years ago
Identical cellos are being tested. One is producing a fundamental frequency of 130.9Hz on a string that is 1.25m long and has a
djyliett [7]

Answer:

the vibrating length of the second string L_2= 1.209 m

Explanation:

Formula for fundamental frequency is

f=\frac{1}{2L}\sqrt{\frac{T}{\mu} }

from this equation we can say that

frequency is inversely proportional to the length of string

⇒\frac{L_2}{L_1}=\frac{f_1}{f_2} }.........................1

Here L_1= 1.25 m

f_1= 130.9 Hz

f_2-f_1= 4.33Hz

⇒f_2= 4.33+130.9= 315.23 Hz

now putting values in equation 1 we get

\frac{L_2}{1.25}=\frac{130.9}{135.23} }.

L_2= 1.209 m

4 0
3 years ago
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