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Adi
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Consider a body like a ball on a frictionless horizontal surface. I apply some force F tangent on it, at the top. Will it translate? I was confused if it can translate or not because I imagined there's only a tangential force, which would provide torque. But now it doesn't follow F=ma as it isn't translating. So it must translate not just rotate. But why? enter image description here

Shouldn't the bottom of the ball keep on slipping backwards making it unable to move forward?

Consider a body like a ball on a frictionless horizontal surface. I apply some force F tangent on it, at the top. Will it translate? I was confused if it can translate or not because I imagined there's only a tangential force, which would provide torque. But now it doesn't follow F=ma as it isn't translating. So it must translate not just rotate. But why? enter image description here

Consider a body like a ball on a frictionless horizontal surface. I apply some force F tangent on it, at the top. Will it translate? I was confused if it can translate or not because I imagined there's only a tangential force, which would provide torque. But now it doesn't follow F=ma as it isn't translating. So it must translate not just rotate. But why? enter image description here

Shouldn't the bottom of the ball keep on slipping backwards making it unable to move forward?

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Adi
  • 21
  • 7

Rolling on frictionless surface

Consider a body like a ball on a frictionless horizontal surface. I apply some force F tangent on it, at the top. Will it translate? I was confused if it can translate or not because I imagined there's only a tangential force, which would provide torque. But now it doesn't follow F=ma as it isn't translating. So it must translate not just rotate. But why? enter image description here