A mass of 100 grams is attached to the end of a rubber string 49 cm. long and having an area of cross section 20 sq. mm. The string is whirled round, horizontally at a constant speed of 40 r.p.s in a circle of radius 51 cm. Find Young's modulus of rubber.

A stone with a mass of 0.9 kg is attached to one end of a string 0.8 m long. The string will break if its tension exceeds 500 N. The stone is whirled in a horizontal circle on a frictionless table top. The other end of the string is kept fixed. Find the maximum speed of the stone, it can attain without breaking the string.

A bob of 1 kg wt is suspended by a rubber cord 2m long and of cross section 0.5 cm^2 it is made to descrbie a horizontal circle of radius 50cm, 4 times a second. Find the extension of the cord, Young's modulus of rubber is 5xx10^8 N//m^2

A stone of mass 250 gram , attached at the end of a string of length 1.25 m is whirled in a horizontal circle at a speed of 5 m/s . What is the tension in the string ?

A catapult consists of two parallel rubber strlings each of lengths, 10 cm and cross sectional area 10mm^(2) . Wen struetched by 5 cm , it can throw a stone of mass 10 gm to a vertical height of 25 m . Determine Young's modulus of elasticity of rubber.

A stone tied to the end of a 20 cm long string is whriled in a horizontal ciecle with a constant angular speed .If the centripetal acceleration is 980 cm//s^(2) , its angular speed is .

A catapult consists of two parallel rubber strings, each of lengths 10cm and cross sectional area 10mm^2 .When stretched by 5cm, if can throw a stone of mass 100g to a vertical height of 25m. Determine Young’s modulus of elasticity of rubber.

A stonetied to the end of a string 100 cm long is whirled in a horizontal circle with a constant speed . If the stone makes 14 revolutions in 25 s, what is the acceleration of the stone ?

A stone tied to the end of a string 80 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 14 revolutions in 25 s, the magnitude of acceleration is :

A stone tied to the end of a string of length 50 cm is whirled in a horizontal circle with a constant speed . IF the stone makes 40 revolutions in 20 s, then the speed of the stone along the circle is