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Allushta [10]
4 years ago
7

Jamie throws a ball with a force of 50N a distance of 25m. Trish throws the ball with the same amount of force, but the ball onl

y goes 15m. Which girl does less work
Physics
1 answer:
Mice21 [21]4 years ago
3 0

Answer:

Trish

Explanation:

the work done by each girl in throwing the ball is equal to the kinetic energy acquired by the ball. The ball thrown by Jamie has for sure more kinetic energy than the ball thrown by Trish, since it travels for a longer distance (25 m against 15 m), therefore this means that Jamie did more work than Trish in throwing the ball.

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Hope this helps!
8 0
3 years ago
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Ber [7]
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6 0
4 years ago
A force of F = (2.00ˆi + 3.00ˆj) N is applied to an object that is pivoted about a fixed axle aligned along the z coordinate axi
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Explanation:

It is given that,

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(b) The cross product of force and position vector is used to find the net torque about the z axis. It is given by :

\tau=F\times r

\tau=(2i+3j) \times (4i+5j)

\tau=\begin{pmatrix}0&0&-2\end{pmatrix}

or

\tau=(-2k)\ N-m

The torque is acting in -z axis.

(a) The magnitude of torque is given by :

|\tau|=\sqrt{(-2)^2}

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Hence, this is the required solution.

5 0
3 years ago
Where is potential energy the greatest on a rollercoaster?
lidiya [134]
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4 0
3 years ago
How many atoms of oxygen in the chemical formula 2 Ca(ClO2)2?
alexgriva [62]

Answer:

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8 0
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