Finding the velocity of a skier

[amazingphysics2255]

Homework Statement

N/a

Relevant Equations

N/a

Problem Statement: 1.I'm asked to find the northerly and easterly velocity of kite skier. the skier is moving 25 ms^1 in the N 25degrre E direction.

2. Wind from the west makes the skier accelerate to the east at 2.0ms^1 for 1.8s CAlculate the new velocity.

3. Use the answer from (1) to calculate the size and direction of the new resultant velocity of the skier.
Relevant Equations: I used Sin and Cos for number 1

For number 1 I used the Sin and Cos of 25degrees to find the Northerly and easterly velocities. MY results are 10.6m s^1 Northerly and 22.7m s^-1 Easterly. SIn 25degrees= Vn/25 Vn= 25 Sin 25degrees = 10.6m s^1 N Cos 25degrees = Ve/25 25 Cos 25degrees=22.7m s^-1 E

For number 2 all I know is that we are given the acceleration and time.

Maybe it's not working because I've incorrectly solved for 1?

MENTOR NOTE: Content restored, thread locked.

 

[Chestermiller]

Please show your diagram for part 1.

 

[haruspex]

Problem Statement: 1.I'm asked to find the northerly and easterly velocity of kite skier. the skier is moving 25 ms^1 in the N 25degrre E direction.

2. Wind from the west makes the skier accelerate to the east at 2.0ms^1 for 1.8s CAlculate the new velocity.

3. Use the answer from (1) to calculate the size and direction of the new resultant velocity of the skier.
Relevant Equations: I used Sin and Cos for number 1

MY results are 10.6m s^1 Northerly and 22.7m s^-1 Easterly.

If 25 degrees E of N, which component would you expect to be the larger, E or N?

 

[amazingphysics2255]

They way you've phrased the question I'm assuming it's the opposite to what I've put. So If I was thinking East should be bigger than I'm probably wrong and It's North.

 

[Chestermiller]

They way you've phrased the question I'm assuming it's the opposite to what I've put. So If I was thinking East should be bigger than I'm probably wrong and It's North.

The angle between due north and the velocity vector is 25 degrees.

 

[haruspex]

They way you've phrased the question I'm assuming it's the opposite to what I've put. So If I was thinking East should be bigger than I'm probably wrong and It's North.

Right, but I am also trying to give you a way to check for yourself in future.

 

[amazingphysics2255]

How does this help me solve my 3 questions?

 

[haruspex]

How does this help me solve my 3 questions?

Doesn’t having it explained to you that your first answer was wrong help you get towards the right answer?

 

[jedishrfu]

Thread locked, OP is changing the content without disclosing why making it difficult to respond.