A coin is tossed downward with an initial velocity of 20
meters per second at an altitude of 273
meters. Approximately how long does it take the coin to reach the
ground? You will need to use the formula
4.9t2+v0t=s
A coin is tossed downward with an initial velocity of 20 meters per second at an...
A coin is tossed upward from an initial height of 7 m above the ground, with an initial speed of 7.4 m/s m/s. The magnitude of the gravitational acceleration g = 9.8 m/s2 Take the point of release to be y0 = 0. Choose UPWARD as positive y direction. Pay attention to the signs of position, velocity and acceleration. Keep 2 decimal places in all answers. (a) Find the coin’s maximum height in meters above the ground? m Correct (100.0%)...
A ball is tossed straight upwards with an initial velocity of .30.00 metres per second from a height of 20,000 meters. Assume that the only force acting on the object is acceleration due to Earth's gravity. Write out the position and velocity functions. With what velocity does the object hit the ground? When the object hits the ground, it bounces back up with one-fourth the speed that it had when it hit the ground. Determine the height of the ball...
A stone thrown downward with an initial velocity of 34.3 m/sec travel a distance of s meters, where:s(t)=4.9t + 34.3t and t is in seconds. If a stone is thrown downward at 34.3m/sec from a height of 294 m, how long will it take the stone to reach the ground?I am putting 294 in for t and trying to solve it that way. Is this correct? If not please let know where I am going wrong.
a bullet is fired from a rifle with a muzzle velocity of 80 meters per second at an angle of 30 degrees from the horizontal. How far away does the bullet hit the ground? How long does it take the bullet to hit the ground? What is the maximum height of the bullet's path?
A ball is thrown from a rooftop with an initial downward velocity of magnitude v0 = 1.1 m/s. The rooftop is a distance above the ground, h = 46 m. In this problem use a coordinate system in which upwards is positive. Part (a) Find the vertical component of the velocity, Vfy, in meters per second, with which the ball hits the ground. Part (b) If we wanted the ball's final speed to be exactly 27.3 m/s from what height, hnew (in...
If a projectile is fired with an initial velocity of vo meters per second at an angle a above the horizontal and air resistance is assumed to be negligible, then its position after t seconds is given by the parametric equations x = (vo cos(a)t y = (vo sin(a)t - +- 1012 where g is the acceleration due to gravity (9.8 m/s2). (Round your answers to the nearest whole number.) (a) If a gun is fired with a = 30°...
If a projectile is fired with an initial velocity of v0 meters per second at an angle α above the horizontal, and air resistance is assumed to be negligible, then its position after t seconds is given by the parametric equationsx=(v0 cos α) t y=(v0 sin α) t-1/2 g t2where g is the acceleration due to gravity (9.8 m / s2)(a) If a projectile is fired with α=45° and v0=900 m / s, when will it hit the ground? How...
A projectile is launched straight up from ground level with an initial velocity of v0 per sec. Neglecting air resistance, its height in feet, s, after t seconds after launch is given by the equation s = –16t2 + v0t. At what time(s) will the projectile reach a height of 112 feet when v0 = 96 feet/sec? After how many seconds will it return to the ground when v0 = 96 feet/sec?
5. A chunk of marble is released initial velocity is zero) from the highest point of the Flatiron building in NYC, which is 93m tall. If gravitational acceleration is a constant of -9.8 meters per seconds squared: a. Find the function, s, that represents the distance of the marble from the ground at time 1. [10] b. How long does it take for the marble to reach the ground? Leave answer as a radical. [5] c. What is its velocity...
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.45 m/s at an angle of 21.9o below the horizontal. It strikes the ground 3.00 s later. How far horizontally from the base of the building does the ball strike the ground? Calculate the height from which the ball was thrown. How long does it take the ball to reach a point 12.0 m below the level of launching?