A catapult launches a ball from ground level with an initial velocity of v = 40 m/s at 30◦ to the horizontal. What is its height above the ground level at the moment in its flight that its speed is least?
minimum velocity is at max height
h = vy^2 / 2g
h = (40 sin 30)^2 / 19.6
h = 20.408 m
=========
Comment before rate in case any doubt, will reply for sure.. goodluck
A catapult launches a ball from ground level with an initial velocity of v = 40...
A small, spring-loaded cannon launches a golf ball from level ground with an initial speed vi at an angle θi with the horizontal. The golf ball lands a horizontal distance R from its launch point. The highest point the golf ball reaches during its flight is a distance R/12 above the ground. In terms of R and g, find the following. (You may ignore air resistance.) (a) the time interval during which the golf ball is in motion t =...
A small, spring-loaded cannon launches a tennis ball from level ground with an initial speed vi at an angle θi with the horizontal. The tennis ball lands a horizontal distance R from its launch point. The highest point the tennis ball reaches during its flight is a distance R/12 above the ground. In terms of R and g, find the following. (You may ignore air resistance.) (a) the time interval during which the tennis ball is in motion (b)the tennis...
A catapult launches a large stone from ground level at a speed of 43.4 m/s at an angle of 54.0° with the horizontal. The stone returns to ground level shortly thereafter. (a) How long is it in the air? _____ s (b) What maximum height does the stone reach? (Neglect air friction.) _____m
A small, spring-loaded cannon launches a racquetball from level ground with an initial speed v, at an angle 0, with the horizontal. The racquetball lands a horizontal distance R from its launch point. The highest point the racquetball reaches during its flight is a distance above the ground. In terms of R and g, find the following. (You may ignore air resistance.) 12 (a) the time interval during which the racquetball is in motiorn (b) the racquetball's speed at the...
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H of 34.0 m above sea level, directed at an angle θ above the horizontal with an unknown speed v0. The projectile remains in flight for 6.00 seconds and travels a horizontal distance D of 152.0 m. 1) Assuming that air friction can be neglected, calculate the value of the angle θ. You know how...
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 80.2 m/s at ground level. The engines then fire, and the rocket accelerates upward at 4.10 m/s2 until it reaches an altitude of 1190 m. At that point its engines fail, and the rocket goes into free fall, with an acceleration of −9.80 m/s2. (You will need to consider the motion while the engine is operating and the free-fall motion separately.) (a)...
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height, H of 31.0 m above sea level, directed at an angle θ above the horizontal with an unknown speed v0 A V The projectile remains in flight for 6.00 seconds and travels a horizontal distance D of 153.0 m. Assuming that air friction can be neglected, calculate the value of the angle θ Submit Answer...
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height, H of 31.0 m above sea level, directed at an angle θ above the horizontal with an unknown speed v0 A V The projectile remains in flight for 6.00 seconds and travels a horizontal distance D of 153.0 m. Assuming that air friction can be neglected, calculate the value of the angle θ Submit Answer...
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 80.4 m/s at ground level. The engines then fire, and the rocket accelerates upward at 3.90 m/s2until it reaches an altitude of 1090 m. At that point its engines fail, and the rocket goes into free fall, with an acceleration of −9.80 m/s2. (You will need to consider the motion while the engine is operating and the free-fall motion separately.) (a) For...
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 80.2 m/s at ground level. The engines then fire, and the rocket accelerates upward at 4.10 m/s2 until it reaches an altitude of 1190 m. At that point its engines fail, and the rocket goes into free fall, with an acceleration of −9.80 m/s2. (You will need to consider the motion while the engine is operating and the free-fall motion separately.) (a)...