The force that causes a sprinter's acceleration is the runner pushing on the blocks, following Newton's third law of motion.
The force that causes the sprinter's acceleration is the runner pushing on the blocks, as explained by Newton's third law of motion. When the sprinter exerts a force backward against the ground through the blocks, the ground reacts by pushing the sprinter forward, accelerating the sprinter out of the blocks.
This force is essential for the sprinter to overcome inertia and start moving forward swiftly.
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