9 A cylindrical jar of diameter 14cm and depth 20 em is half-full of w

1.	9 A cylindrical jar of diameter 14cm and depth 20 em is half-full of water, 300byleadshots of same size are dropped into the jar and the level of water raises2.8cm. Find the diameter of each leadshots.
Answer» GIVEN : Cylinder: r = 7cm h of the water level raised = 2.8cm Sphere: n = 300 TO FIND :d of the sphere FORMULA: Volume of the water raised = Volume of 300 lead shots SOLUTION : 22/7 * r2h = 300 * 4/3 * 22/7 * r3 72* 2.8 = 400r3 r3=49 * 2.8 400 r * r * r = 0.7 * 0.7 * 0.7 r = 0.7cm d = 2 * 0.7 = 1.4cm ANSWER :Diameter of the lead shots = 1.4cm please like my answer if you find it useful

9 A cylindrical jar of diameter 14cm and depth 20 em is half-full of water, 300byleadshots of same size are dropped into the jar and the level of water raises2.8cm. Find the diameter of each leadshots.

Answer»

GIVEN :

Cylinder:

r = 7cm

h of the water level raised = 2.8cm

Sphere:

n = 300

TO FIND :d of the sphere

FORMULA:

Volume of the water raised = Volume of 300 lead shots

SOLUTION :

22/7 * r2h = 300 * 4/3 * 22/7 * r3

72* 2.8 = 400r3

r3=49 * 2.8

400

r * r * r = 0.7 * 0.7 * 0.7

r = 0.7cm

d = 2 * 0.7 = 1.4cm

ANSWER :Diameter of the lead shots = 1.4cm

please like my answer if you find it useful