1 Answer Available Last Activity: 2 Years ago A particle is traveling in a circle of radius R =2.5m and with an angular velocity of 10 rad/s. What is the centripetal acceleration of the particle? The particle begins to slow down with an angular acceleration of -1 rad/s2. After 5 se...
A projectile is launched from a sling-shot with an initial velocity of v_0 =280 ft/sec at an angle of θ =50°. Find (a) the position of the object after 1.5 sec and (b) the time required to reach a height of 150 ft. 相关知识点: 试题来源: 解析 a. x≈ 269.97 ft; y≈ ...
The movement carried out by a projecting subject is nothing else than a passage occurring in a well-determined time, or rather a velocity which by its nature involves a passage or migration. Therefore, it is obvious that, if all the external causes impeding and slowing down this passage and...
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If a projectile is fired from ground level with an initial velocity of ν ft/sec and at an angle of θ degrees with the horizontal, the range R of the projectile is given by the following formula. If ν = 90 ft/sec, approximate the angles that result in a range of 140 feet. (...
A projectile is fired from a gun and has initial horizontal and vertical components of its velocity equal to 30 m/s and 40 m/s, respectively. a. Determine the initial speed of the projectile.b. Determine the launch angle of the projectile.c. Determ...
A projectile moves along its path with a constant horizontal velocity. But its vertical velocity changes by -9.8 m/s each second of motion.
An apparatus for measuring avelocity of a projectile in a barrel (32) includes a first optical fiber (12) having a first (14) and second (16) fiber optic sensors mounted on the barrel and spaced apart. The sensors are connected to a tunable optical notch filter (26), which is in turn...
Using an approximate value of g = 10 m/s 2 , what is the velocity of the ball 2.0 seconds after it is released? A ball is projected straight up with an initial velocity of 30 m/s. After 3 seconds, its velocity will be A ball is tossed with enough speed strai...
The invention relates to a device for measuring the muzzle velocity (V0) of a projectile (6) or similar and to a method that can implement said device. Said device comprises: a weapon barrel or a filling barrel as a wave guide (1), a signal generator (4) that is electrically connected...