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3 years ago

The velocity of any object depends upon

Physics

2 answers:

nasty-shy [4]3 years ago

7 0

Answer:

The displacement, the time and the direction

Explanation:

The velocity of an object is defined as:

$v=\frac{d}{t}$

where

d is the displacement, which is a vector describing the change in position of the object

t is the time in which the displacement takes place

Since d (the displacement) is a vector, velocity is a vector as well: this means that it also has a direction, which corresponds to the direction of the displacement.

The magnitude of the velocity, insteand, is called speed.

Cerrena [4.2K]3 years ago

5 0

Answer: d) the relative motion of the observer

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If series Rs = R1 + R2

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3 years ago

A particle is moving along a circular path of 2-m radius such that its position as a function of time is given by u = (5t 2) rad

OverLord2011 [107]

Answer:

Explanation:

Given

radius of path $r=2\ m$

Velocity of Particle $\theta =5t^2 rad$

where t=time in seconds

angular velocity of particle is given by

$\omega =\frac{\mathrm{d} \theta }{\mathrm{d} t}$

$\omega =2\times 5t=10\cdot t$

And angular acceleration is given by

$\alpha =\frac{\mathrm{d} \omega }{\mathrm{d} t}$

$\alpha =10 rad/s^2$

tangential acceleration is $a_t=\alpha \times r$

$a_t=10\times 2=20\ m/s^2$

Centripetal acceleration $a_c=\omega ^2\times r$

$a_c=(10t)^2\times 2=200t^2$

net acceleration is sum of tangential and centripetal force at any time t is given by

$a_{net}=\sqrt{(a_c)^2+(a_t)^2}$

$a_{net}=\sqrt{(200t)^2+(20)^2}$

$a_{net}=20\sqrt{(10t)^2+1}\ m/s$

8 0

3 years ago

For which object is the force of gravity greatest: Earth, Moon, or Sun? Why?

oksian1 [2.3K]

The sun. The more mass an object has, the greater gravitational pull it will have, as mass attracts other mass.

5 0

3 years ago

A bicyclist travels due east 60.0 km in 3.5 hours. what is the cyclist's average speed?

Reil [10]

I believe it would be 60*3.5. I apologize if this information is wrong.

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4 years ago

the average velocity of a duck is zero as it goes from t=0 to t=120 s. describe the displacement of the duck for that interval

podryga [215]

Answer:

The displacement, s= 0 m

Explanation:

Given data,

The average velocity of the duck, v = 0 m/s

The time interval of the velocity, t₁ = 0 and t₂ = 120 s,

∴ Δt = t₂ - t₁

= 120 s

The displacement of the duck is given by the formula,

s = v x Δt

= 0 m/s x 120 s

= 0 m

Hence, the displacement of the duck is, s = 0 m

8 0

4 years ago