Free help with homework

Why join Brainly?

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


As the body is perpendicular to the surface , work done is zero
0 0 0
If he is starting from rest:
work done=change in kinetic energy=1/2m (v square- u square)
=30 (5×5-0×0)= 30×25=750j
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