Projectile Motion Formulas Ground to ground

 

If cos A + cos B = m and sin A + sin B = n , when m,n not equal to 0, then what is cos (A+B) equal to? Class 11 Trigonometry

 

The sum of two numbers is 13/6. An even number of Airthmetic Means are being inserted between them and their sum exceeds their number by 1. Find the number of mean inserted.

✔️ Number of Arithmetic Means Inserted

12

If pth term of an A. P. s is q and it's qth term is p. Show that it's (p+q) th term is zero

JEE MAINS 2024 (27 JAN) LIMIT QUESTION FIND ab³

1-2x-x^2 = tan^2(x+y) + cot^2(x+y) find x and y Class 11 | Trigonometry Function | IITJEE

 

asin(theta) + bcos(theta) =c then find acos(theta) - bsin(theta)

logx/logy=3/2 and log(xy)=5 Find value of x and y | Class 9 | ICSE | Logarithm

ANSWER: x= 1000 and y= 100

Class 11 | Physics Vector | Under what condition |vecA+vecB|=|vecA-vecB| hold good

 

Answer: If angle between A and B is 90 degree.

a^3-x.b^5x=a^x+5.b^3x then prove that xlogb/a=loga

 

An astronaut is approaching the moon. He sends out a radio signal of frequency 5000 MHz and finds that the frequency shift in echo received is 100 KHz. Find his speed of approach with respect to moon. | Class 11 | Doppler Effect | Sound | IIT JEE |

 

5^(x^2-6x+7)=0.64 find value of x Class 9, 11 Exponent Logarithm

 

One end of a long metallic wire of length L is tied to the ceiling. The other end is tied to massless spring of spring constant k. A mass m hangs freely from the free end of the spring. The area of cross-section and Young's modulus of the wire are A and Y respectively. If the mass is slightly pulled down and released, it will oscillate with a time period T equal to

 

The force F is equal to the m2g/2. If the area of cross section of the string is A and its Young modulus Y, find strain developed in it

 

One end of a long metallic wire of length L area of cross-section A and Young's modulus Y is tied to the ceiling. The other end A sphere of mass 20 kg is suspended by a metal wire of unstretched length 4 m and diameter 1 mm. When in equilibrium, there is a clear gap of 2 mm between the sphere and the floor. The sphere is gently pushed aside so that the wire makes an angle theta with the vertical and is released. Find the maximum value of theta so that the sphere does not rub the floor. Young modulus of the metal of the wire is 2•0 x 10" N m^-2. Make appropriate approximations.

 

If Poisson's ratio σ for a material is −1/2 , then the material is

 1. Elastic fatigue

2. Incompressible--Correct

3. Compressible

4. None of the above

The density of a metal at normal pressure is ρ . Its density when it is subjected to an excess pressure P is ρ '. If B is the bulk modulus of the metal, then the ratio ρ '/ ρ is

 

A particle is projected from level ground, Assuming projection point as origin, x-axis along horizontal y-axis along vertically upwards. if particle moves in xy plane and its path given by y=3x-2x^2 where a and b are positive constants.

 

The velocity ( v ) of a particle (under a force F) depends on its distance ( x ) from the origin (with x > 0 ) v ∝ 1 √ x . Find how magnitude of the force ( F ) on the particle depends of x .

 

Derivative of mod x | Why |x| is not Differentiable at x=0