H2P-3
Centripetal force
H2 Physics · JC 1 · Medium · Centripetal force
A car of mass 900 kg travels at a constant speed of 25 m s⁻¹ over the top of a hump-backed bridge of radius of curvature 120 m. What is the normal reaction force exerted by the road on the car at the top?
- 4.1×10³ N
- 8.8×10³ N
- 1.3×10⁴ N
- 4.7×10³ N
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