A ball is in free fall motion. Upward is taken to be the positive direction. The displacement of the ball is: Group of answer choices positive during both ascent and descent negative during ascent and positive during descent none of the above negative during both ascent and descent positive during ascent and negative during descent

Q: A skier skis down a long, straight hill, through a short valley, and then back up a hill on the…

A: Let the skier apply force Fapp to ski down and the back up the hill.

Q: horizontal. Take up to be positive & down to be negative. Identify which one of the following…

A: Since the velocity along the horizontal direction remains constant, the acceleration along the…

Q: A baseball is thrown vertically upwards into the air (neglect air resistance) and returns to the…

A: Velocity of the ball keeps on decreasing because the deceleration due to acceleration due to gravity…

Q: A truck travels up a hill with a 6.9° incline. The truck has a constant speed of 17 m/s. What is the…

A: The truck is moving on a 6.9 degree hill so the truck velocity will also make the same angle with…

Q: A ball is thrown upwards. Its acceleration is: A downward during ascent and upward during descent B…

A:

Q: Consider two objects that are thrown upwards at an angle (0 = 35°) above the horizontal. Object 1 is…

A: Given: Projection angle θ=35o Initial velocity of object 1 v1 = 10 m/s. Initial velocity of object 2…

Q: Find the north and east components of the displacement (in km) for the hikers shown in the figure…

A: Given value--- S = 1.8 km We have to find--- North and East component of displacement ?

Q: If the swimmer could cross the English Chanel (32km) maintains the same velocity as for the first 50…

A: Given : Width of the canal,d=32 km=32000 m Pool's length d'=50 m Average velocity,dv=2.08 m/s (as…

Q: Find the magnitude of the elevator's final velocity. Group of answer choices

A: Given: Initial velocity of an elevator, u=13 m/s Downward acceleration of an elevator, a=-3.5 m/s2…

Q: During a slap shot, a hockey player accelerates the puck from a velocity of 7 m/s to 40 m/s in the…

A: Given: Initial velocity, u=7 m/s Final velocity, v=40 m/s  Time interval, t=3.33×10-2 s   To…

Q: A quarterback takes the ball from the line of scrimmage, runs backwards for 13.0 yards, then runs…

A: Here we have to use vector components.

Q: A speedboat moves west at 108 km/h for 22.6 min. It then moves at 60.0° south of west at 90.0 km/h…

A: The objective of the question is to find the direction of the average velocity for the entire trip…

Q: In a projectile experiment, a group of students launches a projectile several times. Each time the…

A: Given:In the projectile motion,Angle remains same, θ = constantwith each trial, initial velocity…

Q: An airplane starts at rest and accelerates at 6.1 m/s2 at an angle of 39° south of west. After 9 s,…

A: Given that: a=6.1 m/s2θ=39° south of west.

Q: Find the north and east components of the displacement (in km) for the hikers shown in the figure…

A: According to question we need to find north and east component of displacement.

Q: The velocity of a kayak on a lake is v = (2V2, 2v2). Find the speed and heading of the kayak. Assume…

A: To determine: The speed and the heading of the kayak on a lake   Given, Velocity of kayak on lake…

Q: A football is kicked 60.2 meters. If the ball is in the air 5.50 s, with what initial velocity was…

A:

Q: A ball is projected upward from the ground level with an initial velocity of 96 feet per second.…

A:

Q: A fish is swimming north at 1.2 m/s. It then undergoes an average acceleration of 8.3 m/s^2 51…

A:

Q: A football is kicked from ground level with an initial velocity of 24.6 m/s at angle of 44.0° above…

A: Given data:  A projectile motion  Initial velocity (u) = 24.6 m/s Angle (θ) = 44.0° Required: The…

Q: If a rock is thrown with an initial velocity of 5.4 m/s in th y-direction and 8.2 m/s in the…

A: velocity in x direction=VX=8.2 m/s velocity in y direction=Vy=5.4 m/s let θ be angle at which rock…

Q: The body, moving vertically down with an initial speed of 5 m/s, in the last 2 s of the fall, the…

A: The v-t time graph of the falling object is shown as, The downward displacement is taken as…

Q: A train travels 8.81 m/s in a -51.0° direction. The train accelerates for 2.23 s, changing its…

A: In the question it is given thatInitial velocity of the train was vi= 8.81 m/s in -51o direction.…

Q: Which of the following is not a vector ? position, average velocity, range, average acceleration,…

A: The objective of the question is to identify which among the given options is not a vector. A vector…

Q: Ĵv₁y = 3.0 m/s P₁ = V₁x = ²1.0m/s V₂y = 5.0 m/s P₂ V2x=0"/s X

A:

Q: A skydiver falls d1=355md1=355m in t1=8.7st1=8.7s before opening her parachute. After the chute…

A:

Q: A skiier starts from rest and skis down a snowy hill. At the bottom of the hill, the skier is…

A: Given : The skier is traveling 17 m/s

Q: A rock is thrown horizontally from a bridge with a velocity of 20.0 m/s. It takes the rock 3.0 s to…

A:

Q: You throw a ball vertically upward, and as it leaves your hand, its speed is 23.0 m/s. Assume that…

A: At the time of throwing the ball upward,Total energy of the ball = Initial Kineteci Energy of the…

Projectile Motion