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`        A planet of mass 3×1029 gm moves around a star with a constant speed 2×1016ms-1in a cirlce of radii 1.5×1014cm.the gravitational force  exerted on the planet by the star is `
one year ago

## Answers : (1)

Vikas TU
11137 Points
```							The force would be the centripital force.F = mv^2/rwhere m is the mass of the planetv is the velicity of it r is the radius it is making. F = 3*10^26*4*10^32/(1.5*10^12) = 8*10^46 N
```
one year ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions