Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

A hollow ball is released from bottom of pool.after a short time,it rises at constant speed,then resultant force acting on ball is????




If it rises at constant speed, the dv/dt=0, hence acceleration=o

From Newton second law Fresultant= ma, then if a=0ms-2,

Resultant force= zero

0 0 0
Zero because when the speed is constant the acceleration is zero As force=mass×acceleration If acceleration is zero Then force is also zero F=m×0 F=0
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts