a=t2+2t-5,t=1 x=? physics numerical​

Answers 2

Answer:

The given equation, x=10t+15t3 and the variables are (i) t = 0 to t = 2 s (ii) t = 2 s

We need to clarify all the variables.

Velocity of particle, v=dxdt

While calculating instantaneous velocity , we need to differentiate. Differentiating x w.r.t. time.

v=ddt(10t+15t3)=10+45t2

At t=0,V0=10+45(0)=10ms−1

At t= 2 s,

V2=10+45×(2)2=10+180=190ms−1

ΔV=V2−V1=190−10=180ms−1

Δt=2−0=2s

∴aav=ΔVΔt=1802=90ms−2

Now, differentiate, v with respect to time ti final the acceleration of the particle.

a=ddt(10+45t2)=90t

At t=2s,a=90×2=180ms−2

The instantaneous acceleration of a particle at 2 is 180ms−2.

Answer:

you mentioned the value of y,ok

but i can't find x?

so,plz write complete question or attach it's photo

if you want the value of a then it is

a=t²+2t-5

a=1²+2×1-5

a=1+2-5

a=3-5

a= -2

ok bye .

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when does the poet say "I will arise and go now"?from the chapter 'The Lake Isle Of Innisfree'​

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1. संवाद से क्या तात्पर्य है? भाषा में इसका क्या महत्व है?​

Explanation:

संवाद से क्या तात्पर्य :- संवाद का सामान्य अर्थ बातचीत है। इसमें दो या दो से अधिक व्यक्ति भाग लेते है। अपने विचारों और भावों को व्यक्त करने के लिए संवाद की सहायता ली जाती है। जो संवाद जितना सजीव, सामाजिक और रोचक होगा, वह उतना ही अधिक आकर्षक होगा।

भाषा में इसका क्या महत्व :-संवादों के माध्यम से केवल शब्दों का ही आदान- प्रदान नहीं होता बल्कि उनका प्रयोग करने वालों के चेहरे पर तरह-तरह के हाव-भाव भी प्रकट होते हैं, जो संवादों में प्रयुक्त किए जाने वाले शब्दों के आरोह-अवरोह को नाटकीय ढंग से स्वाभाविकता प्रदान करते हैं।

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