One strategy in a snowball fight is to throw a snowball at a high angle over level ground. Then, while your opponent is watching that snowball, you throw a second one at a low angle timed to arrive before or at the same time as the first one. Assume that both snowballs are thrown with a speed of 25.0 m/s. The first is thrown at an angle of 70.0° with respect to the horizontal.(a) At what angle should the second snowball be thrown to arrive at the same point as the first?(b) How many seconds later should the second snowball be thrown after the first in order for both to arrive at the same time?

Q: In a live fire exercise, an Army artillery team fires an artillery shell from a howitzer. The barrel…

A: Given data: Angle above the horizontal, θ=540 Initial velocity of the shell,  u=350 m/s  Time taken…

Q: A student throws a water balloon at an initial angle θ = 23° above the horizontal with an initial…

A: Given: Angle of projection =23 degrees Height h=1.52 m Horizontal distance d =7.5 m

Q: speed of the ball w

A: Given: Horizontal distance traveled by ball is 28 m Initial speed of ball is u=17.4 m/s makes an…

Q: A firefighting crew uses a water cannon that shoots water at 29.0 m/s at a fixed angle of 47.0°…

A: separate the 29 m/s into horizontal and vertical components.vertical velocity=29 sin 47°=21.209…

Q: A forward kicks a soccer ball with an initial speed of 32.0 m/s from the ground at an angle 35.0…

A: U= 32 m/s  Angle is 35°

Q: A radar station detects an incoming missile. At first contact, the missile is found to be a…

A: In cartesian coordinates, the position of missile in 1st instant: x1=d1cosθ1=57.5cos30o=49.796…

Q: You are designing an artillery system with the aim of hitting a target 20 km away with two shells at…

A: Given that: The range (horizontal distance) is R=20 km The angle is, θ=50° for projectile 1.   it…

Q: The engine of a boat drives it across a river that is 238 m wide.  The velocity of the boat relative…

A: Width of river (w)=238 m Velocity of boat relative to water (vbw)=14.2 m/s Velocity of water…

Q: volleyball is served at a speed of 13.2 m/s wi ayer's hand making contact with the ball 2.20

A: Yes, the volleyball will clear the net. The net is 2.43 meters high and the ball is served at a…

Q: A projectile is launched with an initial speed of 40.0 m/s at an angle of 35.0° above the…

A: (a) Given θ=35° u=40m/s The magnitude of the projectile’s velocity at the highest point of its…

Q: A golf coach is showing her athletes how to hit a golf ball from the ground. Using her driver, she…

A: A. How long is the ball in the air before it first hits the ground?In the given parametric…

Q: The cork from a champagne bottle slips through the hands of a waiter opening it, moving with an…

A: Given Data: The initial speed of cork v0=15.6 ms Launch angle θ=77.4° A diner is sitting a…

Q: A cannon fires a projectile with an initial velocity of 300 m/s at 52.5° above the horizontal. The…

A: Velocity v=300 m/s Angle =52.5° Impact time t=35.0 s

Q: A human cannon ball is fired at an angle of 60 degrees and speed of 25m/s. If the net is located 35…

A: Given, A human cannon ball is fired at an angle of 60 degrees and speed of 25m/s.  So,  v0x =…

Q: The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting…

A: Given Data: Initial speed of the ball (uy) = 15.0 m/s.Angle of the ball (θ) = 50.0o.Horizontal…

Q: 3. A gym teacher is fired from a cannon into a net (as part of a circus act) that is situated 4.0 m…

A: 3) Given, height of net from the ground is h=4m initial velocity is u=23.9m/s fired/launching angle…

Q: An artillery shell is fired with an initial velocity of 300 m/s at 63.0° above the horizontal. To…

A: Given initial velocity v = 300 m/s at 63° horizontal component of velocity vx = 300 cos 63° Vertical…

Q: A place kicker must kick a football from a point 36.0 m from the goal and the ball must clear the…

A:

Q: Water leaves a fireman’s hose (held near the ground) with an initial velocity v0 = 22 m/s at an…

A:

Q: A batter hits a baseball. The ball leaves the bat at a height of 1.30 meters above the ground,…

A:

Q: A fire hose ejects a stream of water at an angle of 36.9 ° above the horizontal. The water leaves…

A: We know that the highest point of projectile is the mid point of its horizontal range.  If we place…

Q: In the latest Indian Jones film, Indy is supposed to throw a grenade from his car, which is going…

A: Solution     Given dataIndy velocity vi=96(km)/hEnemy car speed ve=116km/hEnemy car Ro=16.7m in…

Q: A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. Half the…

A:

Q: Water leaves a fireman’s hose (held near the ground) with an initial velocity v0 = 23 m/s at an…

A:

Q: A student throws a water balloon with speed v0 from a height h = 1.74 m at an angle θ = 27° above…

A:

Q: An industrious chipmunk creates an acorn catapult. This acorn catapult fires a 0.00543 kg acorn at…

A: (d) Given: The mass of the acorn is 0.0053 kg. The initial speed of the acorn is 21.8 ms-1.…

Q: A baseball is thrown from an outfielder to the second baseman on a level field. The ball is in the…

A: a) R = ux×∆t  ux = R/∆t = 92/3.5 = 26.28 m/s ∆t = 2uy/g  uy = ∆tg/2 = (3.5×9.8/2) = 17.15 m/s     b)…

Q: For a forensics experiment, a student decides to measure the muzzle velocity of the pellets from his…

A: The distance of the wall from the gun is D = 47.3 m The shot hit the target at a vertical distance…

Q: A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 61.5° above the…

A: The second equation of motion is  where, h is the height, u is the initial velocity, t is the time,…

Q: In a basketball game, the point guard A intends to throw a pass to the shooting guard B, who is…

A:

Q: A reckless student is standing outside the HLC (Library) 8.50 meters away the building, and throws a…

A: Horizontal distance (x) = 8.50 m Initial velocity (vo) = 15.6 msLaunch angle (θ) = 64o

Q: (1) How much does the arrow clear the treetop if 6 = 30.0°? (A) 3.6 m; (B) 3.1 m; (C) 2.6 m; (D) 2.1…

A: Projectile A projectile is an object that is thrown without any fuel. The object is generally thrown…

Projectile Motion