A pickup truck is traveling along a straight flat highway at a constant speed of 10 m/s measured relative to the ground. A person standing in the flatbed of the pickup truck throws a ball into the air at an angle of 60° above the horizontal as measured relative to the truck and in line with the highway. A second person who is standing on the ground nearby observes the ball to rise vertically. Take the positive direction of the x -axis to point horizontally in the direction of motion of the truck and the positive direction of the y -axis to point straight up from the ground. Find the velocity of the ball relative to the truck in unit vector notation.

An adventurer paddles a kayak across the current in wild river. She appears to an observer sitting on the riverbank to be travelling directly across the river at 90° to the riverbank, and the water velocity is parallel to the riverbank (in other words, downstream). To do this she must paddle at a constant velocity of 1.8 m/s relative to the water at an angle of 28° from the upstream direction. The river is 76 m wide. What is the speed of the water current? From the given options A 0.80 m/s B 1.6 m/s C 2.2 m/s D 1.9 m/s

An airplane takes 5 hours to travel a distance of 5400 miles with the wind. The return trip takes 6 hours against the wind. Find the speed of the plane in still air and the speed of the wind.

A van had a small light in the ceiling of the cargo bay. When the van is accelerating east at a rate of 2.99 m/s^2, the light bulb rattles loose and falls to the floor. Determine the acceleration relative to the earth and its direction and the acceleration relative to the van and it’s direction.

A river of width' a' with straight parallel banks flows due north with speed u. The points O and A are on opposite banks and A is due east of O. Coordinate axes Ox and Oy are taken in the east and north directions respectively. A boat, whose speed is v relative to water, starts from O and crosses the river. If the boat is steered due east and u varies with x as : u = r(a – x) - 2). Find: equation of trajectory of the boat

Could I have help with this physics question?

Boat A is stationary relative to the still water of a lake . Let the water surface be the xy plane . Boat B is moving at a constant speed of 3 m / s along the x - axis , relative to the water . According to an observer on A , a fish F has an acceleration of 7 m/s^ ^ 2a along the positive y axis . Which of the following vectors gives the acceleration of F as seen by an observer on B (inm / (s ^ 2)) ?

A hunter spots a duck flying a given distance, h, above the ground (in meters) and shoots at it with his shotgun.  The buckshot leaves the shotgun at an angle equal to 57.7 degrees from the horizontal with a velocity of 105 m/s.  The duck is flying at a speed of 30 m/s in a horizontal direction toward the hunter.  If the hunter shot when the duck was 200 meters away from the hunter and hit the duck, how high was the duck flying?

Two cars approach each other at an intersection. Car A is traveling south at 30 m/s, while car B is traveling 70 degrees north of east at 50 m/s. What is the speed (in m/s) of car A as seen by the driver of car B?

An airplane takes 5 hours to travel a distance of 4500 miles with the wind. The return trip takes 6 hours against the wind. Find the speed of the plane in still air and the speed of the wind.