sheila weighs 60 kg and is riding a bike. her momentum on the bike is 340 kg·m/s. the bike hits a rock…

sheila weighs 60 kg and is riding a bike. her momentum on the bike is 340 kg·m/s. the bike hits a rock, which stops it completely and throws sheila forward onto the pavement. if there is no net force on the system, what is sheilas velocity immediately after she is thrown from the bike? 1.8 m/s 2.0 m/s 5.0 m/s 5.7 m/s

sheila weighs 60 kg and is riding a bike. her momentum on the bike is 340 kg·m/s. the bike hits a rock, which stops it completely and throws sheila forward onto the pavement. if there is no net force on the system, what is sheilas velocity immediately after she is thrown from the bike? 1.8 m/s 2.0 m/s 5.0 m/s 5.7 m/s

Answer

Explanation:

Step1: Recall momentum formula

The formula for momentum is $p = mv$, where $p$ is momentum, $m$ is mass and $v$ is velocity. We know $p = 340\ kg\cdot m/s$ and $m=60\ kg$, and we need to find $v$.

Step2: Rearrange formula to solve for velocity

From $p = mv$, we can solve for $v$ as $v=\frac{p}{m}$.

Step3: Substitute values

Substitute $p = 340\ kg\cdot m/s$ and $m = 60\ kg$ into the formula: $v=\frac{340}{60}\approx5.7\ m/s$.

Answer:

D. 5.7 m/s