friction between the car's tires and each road surface.) a) 20 m/s b) 40 m/s c) 80 m/s d) 160 m/s Solution: The centripetal force is the same for both the case, therefore we can obtain 2 2 2 1 2 1 r v m r v ma r = m =. From this equation, the speed for the second curve is v m s m s r r v 1 2 20 / 40 / 1 2 2 = = ⋅ =. 4. A motorcycle has a mass ...

The force exerted by gravity on 1 kg = —10 N. The force exerted by gravity on 5 kg = The force exerted by gravity on 70 kg = The value of the British systemic 32 ft/cec2 The unit of force is pounds. The unit of mass the slug- your pounds to W = (501b) calculate your masc in units of slugs. PSYW q,G875 32 50

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Classify each of these reactions naoh+hclo4

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