## Related questions with answers

Question

A sled, with mass $m$, is given a shove up a frictionless incline, which makes a $28.0^{\circ}$ angle with the horizontal. Eventually, the sled comes to a stop at a height of $1.35 \mathrm{~m}$ above where it started. Calculate its initial speed.

Solution

VerifiedAnswered 1 year ago

Answered 1 year ago

Step 1

1 of 4Given the following information

$\begin{aligned} \theta&=28.0^{\circ}\\ h&=1.35\ \mathrm{m}\\ \end{aligned}$

our goal is to calculate the initial speed of the sled $v_0$.

This exercise requires applying the work-kinetic energy theorem,

$\begin{equation} W=\Delta K \end{equation}$

as the work done by gravity must be equal to the change in the sled's kinetic energy.

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