Hello
1) The work W is calculated as the product between the force F applied to the cart and the distance d covered by the cart:
2) The force is the product of the mass m of the cart and its acceleration a:
If we use this into the formula of the work, we get
3) The cart is moving by accelerated motion. For this kind of motion, we have the following relationship:
where
and
are the final and the initial velocity of the cart.
Re-arranging we have
4) Therefore, we can subsitute
into the original formula of the work, and we get
I believe it would be 127.8 pounds. weight = mass x gravity
Answer:
saddle weighs 250 newtons. The mass of the saddle is ____250/9.8 kg______ kilograms. Use g = 9.8 N/kg for gravity.
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