What physical principle do you think applies to this situation?Pizall said:A 50 kg boy runs at a speed of 10.0 m/s and jumps onto a cart originally at rest. The cart, withe the boy on it, then takes off in the same direction in which the boy was running. If the cart with the boy has a velocity of 2.50 m/s what is the mass of the cart?
I need the equation to find the Mass of the cart. Please help
What is the definition of momentum?Pizall said:A 50 kg boy runs at a speed of 10.0 m/s and jumps onto a cart originally at rest. The cart, withe the boy on it, then takes off in the same direction in which the boy was running. If the cart with the boy has a velocity of 2.50 m/s what is the mass of the cart?
I need the equation to find the Mass of the cart. Please help
It is actually m1v1 +m2v2 = m1v1' + m2v2'. but here, v2 is 0, so you're equation is sort of OK. But what can you say about v1' and v2'? How does each relate to the given v_f = 2.5?Pizall said:
No, its total initial momentum = total final momentum. v1 is the initial velocity of the boy(10). v2 is the initial velocity of the cart(0). v1' is the final velocity of the boy, and v2' is the final velocity of the cart. The boy and the cart move together after he jumps on it. So what's v1' and v2'?Pizall said:
Yes, now you just have to solve for m2. Note that since the boy and cart move together at the same speed and direction after he jumps on it, you could have written the equation asPizall said:
You had the right equation, but slipped up on the parentheses and the algebra.Pizall said:
The 150kg mass for m2 is correct. you could have reworked your equation to readPizall said:
The transfer of energy refers to the movement or conversion of energy from one form to another. This can occur between different objects, systems, or within the same object or system.
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