A man and a cart move towards each other. The man weighs \( 64 \mathrm{~kg} \) and the cart \( 3...

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A man and a cart move towards each other. The man weighs \( 64 \mathrm{~kg} \) and the cart \( 32 \mathrm{~kg} \). The velocity of the man is \( 5.4 \mathrm{~km} / \) \( \mathrm{hr} \) and that of the cart is \( 1.8 \mathrm{~km} / \mathrm{hr} \). When the man approaches the cart, he jumps on to it. The velocity of the cart carrying the man will be
a. \( 3 \mathrm{~km} / \mathrm{hr} \)
b. \( 30 \mathrm{~km} / \mathrm{hr} \)
c. \( 1.8 \mathrm{~km} / \mathrm{hr} \)
d. Zero
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