Physics, 30.11.2019 04:31 connormaxie
A45.0-kg girl is standing on a 166-kg plank. the plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. the girl begins to walk along the plank at a constant velocity of 1.48 m/s to the right relative to the plank. (let the direction the girl is moving in be positive. indicate the direction with the sign of your answer.)
1. what is her velocity relative to the surface of the ice?
2. what is the velocity of the plank relative to the surface of ice?
Answers: 2
= Mass of girl = 45 kg
= Mass of plank = 166 kg
= Velocity of girl relative to plank = 1.48 m/s
= Velocity of the plank relative to ice surface
Another question on Physics
Physics, 21.06.2019 17:30
How does convection affect our atmosphere? our layers of earth? our oceans?
Answers: 3
Physics, 22.06.2019 10:00
Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer
Answers: 2
Physics, 22.06.2019 18:30
Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?
Answers: 1
Physics, 22.06.2019 20:30
Atemperature inversion can cause a warm air mass to move over a colder air mass. this traps the colder air mass and prevents surface air from rising. this may result in which of these? a) smog b) acid rain c) freezing rain d) a thunderstorm
Answers: 3
You know the right answer?
A45.0-kg girl is standing on a 166-kg plank. the plank, originally at rest, is free to slide on a fr...
Questions
Arts, 23.10.2020 07:01
English, 23.10.2020 07:01
Biology, 23.10.2020 07:01
Mathematics, 23.10.2020 07:01
English, 23.10.2020 07:01
Health, 23.10.2020 07:01
English, 23.10.2020 07:01
