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Find the common difference of the AP 4,9,14,… If the first term changes to 6 and the common difference remains the same then write the new AP.

Monjur Alahi

Find the common difference of the AP 4,9,14,… If the first term changes to 6 and the common difference remains the same then write the new AP.


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Salim Ahmed Kawsar

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The common difference is 9 - 4 = 5

If the first term is 6 and common difference is 5, then new AP is,

6, 6 + 5, 6 + 10…

= 6,11,16….

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A constant force acting on a body of mass 3 kg changes its speed from 2 ms^-1 to 3.5 m/s in 25 s. The direction of motion of the body remains

Given: u = 2 ms-1, m = 3 kg, v = 3.5 m s-1, t = 25s To find: Force (F) Formula: F = ma Calculation: Since, v = u + at ∴ 3.5 =...

2 Answers 2 views
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2 Answers 1 views
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Correct Answer - `T_(n) = (2n-15)`

2 Answers 1 views
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2 Answers 1 views
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Correct option is: (B) \(2v_e\) Escape Velocity \(v_e = \sqrt {2gRe}\) \(\frac{V_{e1}}{V_{e2}} \propto \sqrt \frac{4R_1}{R_1}\) \(V_{escape \ 2} = 2 \ V_{escape \ 1}\)

2 Answers 1 views
Escape velocity on a planet is ve. If radius of the planet remains same and mass becomes 4 times, the escape velocity becomes 2 Answers 1 views
Find the common difference of an A.P if \( t_{18}-t_{14}=3 L \). If \( 3+k, 18-k, 5 k+1 \) are in A.P, then find \( k \). If \( p \) and \( q \) are positive integers, then we write \( p=a^{2} b^{3} \) and \( q=a^{3} b \) if \( a \), \( b \) are numbers, then verify that L.C.M of \( (p, q) \times \) H.C.F of \( (p, q)=p q \).

t18=t1+17×d t14=t1 +13×d solving the two equtaions, t18-t14= 4d subtisting 4d=32 =  d=8

2 Answers 1 views
If the direction of velocity changes continuously and speed remains constant, then the body will be in …………… motion. 

D) uniform circular

2 Answers 1 views
Determine the AP whose third term is 16 and the 7th term exceeds the 5th term by 12.

Solution: As the 7th term exceeds the 5th term by 12, so the 5th term will exceed the 3rd term by 12 as well So, n3 = 16 n5 = 28 n7 = 40 n4 or n6 can be...

2 Answers 1 views

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