. A student attaches a ball to the end of a string 0.600 min length and then swings the ball in a vertical circle.The speed of the ball is 4.30 m/s at its highest pointand 6.50 m/s at its lowest point. Find the accelerationof the ball when the string is vertical and the ball is at(a) its highest point and (b) its lowest point.

Q: A 1.0-kg ball rolls at 3.0 m/s off a horizontal surface that is 1.5m above the floor. How far…

A:

Q: In uniform circular motion, how does the acceleration change when the speed is increased by a factor…

A: speed is increased by a factor of 3 When the radius is decreased by a factor of 2

Q: A small lead ball, attached to a 1.15-m rope, is being whirled in a circle that lies in the vertical…

A: The velocity of the ball can be calculated as follows,

Q: A pilot performs an evasive maneuver by diving vertically at 280 m/sm/s . If he can withstand an…

A:

Q: If an airplane is flying at 140 miles per hour east and turns in a smooth curve with a diameter of 3…

A: Velocity "v" = 140 miles  Diameter "d"= 3 miles  So ,radius "r"= 1.5 miles . now, for calculating…

Q: Does a car moving around a circular track with constant speed have .a)0 acceleration b) an…

A: Car moving with constant circular speed

Q: The length of a blade of a helicopter is 5_m, and the blade spins at 350_rev/min. Find the…

A: Centripetal accelerationac=ω2r=350 revmin25 m=350 revmin×2π radrev×min60 s25 m=6717 ms2

Q: A centripetal-acceleration addict rides in uniform circular motion with radius r=3.00m. At one…

A: Given, Radius: r=3 [m] Instantaneous acceleration: a→=6.00 [m/s2i^+-4.00 [m/s2j^

Q: A boll rounds a 10 m radius curve at 8 m/s. The magnitude of it's acceleration in m/s?

A: Given data :                Radius    =    R                 Speed     =    V          To find :…

Q: A man fired a gun horizontally from the top of 70 - m high building with the velocity of 300 m/s.…

A:

Q: A projectile is fired vertically with an initial velocity of 210 m/s. Calculate the maximum altitude…

A:

Q: For an object undergoing a uniform circular motion with radius 5.7 m and period 4.35 sec, the…

A:

Q: Que A bullet is shot straight up from the surface of the Moon (g = 1.62 m) with an initial velocity…

A:

Q: A basketball player shoots toward a basket 5.1 m away and 3.0 m above the floor. If the ball is…

A: Horizontal distance (d) = 5.1 m Height of basket above the floor (h) = 3 m Initial height of floor…

Q: While playing sock baseball in the living room, a child swings a pair of socks attached to the end…

A: Consider the speed of the socks be v, and the length of the string, that is the radius of the…

Q: A dare devil wants to jump a 39 m wide canyon with his motorcycle. If the launch point and the…

A:

Q: In a circular motion, if an object has a speed of 37.7m/s, and radius of the circular path is 10 m,…

A:

Q: Serving at a speed of 170 km/h, a tennis player hits theball at a height of 2.5 m and an angle θ…

A:

Q: While playing sock baseball in the living room, a child swings a pair of socks attached to the end…

A: The expression for the centripetal acceleration in a circular motion is: Substitute the known…

Q: If a package is dropped from the plane and travels a horizontal distance of 350m before landing,…

A:

Q: Suppose a rocket-propelled motorcycle is fired from rest horizontally across a canyon 1.00 km wide.…

A: Given,Suppose a rocket-propelled motorcycle is fired from rest horizontallyThe initial speed of the…

Q: A boll rounds a 18 m radius curve. at 4 m/s. The magnitude of it's acceleration in m/s?

A:

Q: what is the difference of the centripetal acceleration in m/s² of the earth having 1.5 x 1011 m…

A:

Q: During a portion of a vertical loop, an airplane flies in an arc of radius p = 581 m with a constant…

A: The radial and angular velocity of the plane be calculated as,

Q: t In an Internet video an athlete launches a basketballfrom a stadium platform that is 16.2 m higher…

A: Given, an athlete launches a basketball from a stadium platform which happens to be 16.2 m higher…

Q: In a circular motion, if an object has a speed of 34.8m/s, and radius of the circular path is 80.2…

A:

Q: In a circular motion, if an object has a speed of 35.5m/s, and radius of the circular path is 45.2…

A: Recall centrepetal acceleration=v2/r As speed=v=35.5 m/s radius=45.2 m

Q: A body of mass m is undergoing circular motion. Th t = 0s. 3m Y V= 0=45°

A:

Q: A ball is thrown eastward into the air from the origin (in the direction of the positive x-axis).…

A:

Q: A projectile is launched horizontally off from a tall building at a sped of 50m/s. After three…

A: Given Projectile is launched in horizontal direction Initial velocity of projectile = ux = 50 m/s…

Q: A small lead ball, attached to a 1.45-m rope, is being whirled in a circle that lies in the vertical…

A: Given: The length of the rope is 1.45 m. The initial height of the ball is 1.7 m. The speed of the…

Q: Serving at a speed of 170 km/h, a tennis player hits the ball at a height of 2.5 m and an angle…

A: Serving speed = 170 km/h. The height, h = 2.5 m. The baseline from the net = 11.9 m. The height of…

Q: A cat leaps to try to catch a bird. If the cat's jump was at an angle 81.9 degree above the…

A:

Q: Serving at a speed of 220 km/h, a tennis player hits the ball at a height of 3.1 m and an angle 8…

A:

Q: A projectile is thrown horizontally from the top of a building with ar velocity v_i=15 m/s. If the…

A: Dear student We can apply equations of motion in projectile motion. The equations are given as: v =…

Q: A roadrunner is cruising at 11 m/s without knowing the road under its feet is about to run out, at…

A: The roadrunner is running at a speed of 11 m/s on a road that is 30 m above a valley.

Q: In a video game, a science-fictional “angry bird” is launched straight upwards by a high-velocity…

A: Given data:  Initial velocity (V0) = 249 m/s, upward Acceleration due to gravity (g) = 11.2 m/s2…

Q: A ball is thrown eastward into the air from the origin (in the direction of the positive x-axis).…

A: Initial velocityv0=40 i +48kacceleration a(t)=-10 j-32 kvelocity v(t)=v0=-10t j-32t k

Q: An airplane is flying north. It makes a gradual 180° turn (at any instant, the turning angle is less…

A: Recalla=V2-V1∆t=average acceleration

Q: An Earth satellite moves in a circular orbit 878 km above Earth's surface with a period of 102.3…

A: (a) Speed is given by,

Q: a = 5.0 m/s? Question #6 ay A roller coaster car rolls from rest down a 20° incline with an a,…

A: Angle of incline (θ) = 20oacceleration (a) = 5 ms2time (t) = 10 seconds Initial velocity (u)  = 0 ms…

Q: A fishing sinker on a string revolves in a circle of radius 1.00 m with a constant speed of 2.75…

A: Given data:  Radius (r) = 1.00 m Speed (v) = 2.75 m/s Required: Centripetal acceleration (ac)

Q: What should be the minimum horizontal velocity of the ball rolling off a table 30 cm high so as to…

A: By law of conservation of energy, potential energy at the topis equal to the kinetic energy on…

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.