- #1
shayaan_musta
- 209
- 2
1)What displacement must be added to a 50cm displacement in the +x-direction to give resultant displacement of 85cm at 25°?
2)A child is holding a wagon from rolling straight back down a driveway that is inclined at 20°to the horizontal. If the wagon 150N, with what force must the child pull on the handle if the handle is parallel to the incline?
3)A boat is propelled so as to travel with a speed of 0.50m/s in still water, moves directly across a river i.e. 60m wide. The river flows with a speed of 0.30m/s. (a) At what angle relative to straight-across, direction must the boat be pointed? (b) How long does it take to cross the river?
I have these 3 question. I don't know how solve it. Because I didn't get idea. If you people just at least give me idea, I will very great full to you.
Thanks a lot.
2)A child is holding a wagon from rolling straight back down a driveway that is inclined at 20°to the horizontal. If the wagon 150N, with what force must the child pull on the handle if the handle is parallel to the incline?
3)A boat is propelled so as to travel with a speed of 0.50m/s in still water, moves directly across a river i.e. 60m wide. The river flows with a speed of 0.30m/s. (a) At what angle relative to straight-across, direction must the boat be pointed? (b) How long does it take to cross the river?
I have these 3 question. I don't know how solve it. Because I didn't get idea. If you people just at least give me idea, I will very great full to you.
Thanks a lot.