A solid sphere of mass 1 kg, radius 10 cm rolls down an inclined plane of height 7 m. the velocity of its centre as it reaches the ground level is
a)
7 m/s
b)
10 m/s
c)
15 m/s
d)
20 m/s
A solid sphere of mass 1 kg, radius 10 cm rolls down an inclined plane of height 7 m. the velocity of its centre as it reaches the ground level is
a)
7 m/s
b)
10 m/s
c)
15 m/s
d)
20 m/s
Question ID - 52818 | SaraNextGen Top Answer
A solid sphere of mass 1 kg, radius 10 cm rolls down an inclined plane of height 7 m. the velocity of its centre as it reaches the ground level is
a)
7 m/s
b)
10 m/s
c)
15 m/s
d)
20 m/s
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A solid sphere of mass 1 kg, radius 10 cm rolls down an inclined plane of height 7 m. the velocity of its centre as it reaches the ground level is |
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a) |
7 m/s |
b) |
10 m/s |
c) |
15 m/s |
d) |
20 m/s |
1 Answer
127 votes
Answer Key / Explanation : (b) -
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(b) When a body of mass Velocity at the lowest point For solid sphere
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and radius 
rolls down on inclined plane of height 
and angle of inclination 
, it losses potential energy. However, it acquires both linear and angular speeds.
m/s127 votes
Answer Link
127