An air ambulance is travelling from Barrie to Toronto. Toronto is located 90 km [S5°E] of Barrie. If the wind is blowing from the South with a velocity of 62 km/h, and the plane’s air speed is 375 km/h, what direction must the pilot fly to make it to Toronto?

The answer is [S4.8°E] but I do not understand how to get to the answer

Thanks :)

Cindy leaves Toronto for Thunder Bay at a steady speed of 100km/h. Two hours later, her brother Bob leaves Thunder Bay for Toronto at a speed of 80km/h. Thunder Bay is 1800km from Toronto.

a) how far will each sibling travel before they meet one another?

b) how much time will each sibling spend on the road before the meet up with one another

A boulder travelling from rest at travels a distance of (measured in meter). What is the instantaneous velocity ?

A mass on a spring vibrates horizontally on a smooth level surface (see the figure). Its equation of motion is where t is in seconds and x in centimeters.

1. Find the velocity and acceleration at time t.

2. Find the position, velocity and acceleration of the mass at time . In what direction is it moving at that time?