subject
Physics, 09.11.2019 00:31 skpdancer1605

Aboat with a mass of 1000 kg drifts with the current down a straight section of river parallel to the +x+x axis with a speed of 2.0 m/s. at t=0t=0 the boat engages its engines, and accelerates at 2.7 \,\mathrm{m/s^2}2.7m/s2. if the boat is oriented with its nose 45^\circ45∘ from the +x+x axis, which of the following is a possible value for the boat's momentum at t = 3.0\, \mathrm{s}t=3.0s after the engine had started?

pick the correct answer

a. \vec{p} = (7700 \hat{i} + 5700 \hat{j}) \; \mathrm{kg \, m/s}p=(7700i^+5700j^)kgm/s
b. \vec{p} = (9500 \hat{i} - 1400 \hat{j}) \; \mathrm{kg \, m/s}p=(9500i^−1400j^)kgm/s
c. \vec{p} = (5700 \hat{i} + 9500 \hat{j}) \; \mathrm{kg \, m/s}p=(5700i^+9500j^)kgm/s
d. \vec{p} = ( 1400 \hat{i} - 7700 \hat{j}) \; \mathrm{kg \, m/s}p=(1400i^−7700j^)kgm/s
e. none of these are correct

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 10:40
When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is
Answers: 2
question
Physics, 22.06.2019 15:00
What property of an object determines its inertia?
Answers: 2
question
Physics, 22.06.2019 23:30
When barack obama was running for president, at a campaign stop he tried to bowl, something he isn't very good at. the media loved it because he threw a gutter ball while they were all watching. this is an example of:
Answers: 2
question
Physics, 23.06.2019 00:00
Sasha has just gotten a new job in a nearby city. after comparison shopping, she found that renting a nice two-bedroom apartment would cost around $800 per month. her utilities would cost about $150 per month. sasha has enough money saved for a down payment, and she found that she can buy a three-bedroom house or condo with a mortgage payment of $1,000 per month, including taxes and homeowner's insurance. her utilities would cost about $200 per month. what is the advantage of buying the house over renting the apartment?
Answers: 1
You know the right answer?
Aboat with a mass of 1000 kg drifts with the current down a straight section of river parallel to th...
Questions
question
Mathematics, 08.07.2021 20:50
question
Mathematics, 08.07.2021 20:50
question
Mathematics, 08.07.2021 20:50