A Skateboarder and an Observer#

Mateo is on a skateboard and has an initial velocity of (-1.98 \(m/s\)) \(\hat{\imath}\) relative to Savannah who is at rest with respect to the earth. Just as they are gliding past Savannah, Mateo throws a ball in the positive \(x\)-direction from a height of 4.75 m. According to Mateo, the ball has an initial velocity of (4.48 \(m/s\)) \(\hat{\imath}\).

Part 1#

What is the initial velocity of the ball according to Savannah?

Answer Section#

Please enter in a numeric value in \(m/s\).

Part 2#

How long is the ball in the air?

Answer Section#

Please enter in a numeric value in \(s\).

Part 3#

Relative to Savannah, where does the ball land?

Answer Section#

Please enter in a numeric value in \(m\).

Part 4#

If the mass of Mateo plus the skateboard is 62.2 \(kg\) and the ball has a mass of 1.05 \(kg\), what is Mateo’s speed, as measured by Savannah, immediately after releasing the ball?

Answer Section#

Please enter in a numeric value in \(m/s\).

Part 5#

Relative to Mateo, where does the ball land?

Answer Section#

Please enter in a numeric value in \(m\).

Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.
The Creative Commons 4.0 license requiring attribution-BY, non-commercial-NC, and share-alike-SA license.