A baseball is thrown with a velocity of -45 m/s (negative because it is moving toward the batter). The batter strikes the baseball, which leaves the bat with a velocity of 70 m/s. If the baseball was in contact with the bat for 0.02 s, what acceleration did the bat apply on the baseball?

Q: at 29.0 m/s bounces off a brick wall and rebounds at 15.5 m/s. A high-speed camera records this…

A:

Q: A potato of mass m = 0.26 kg hangs motionless, suspended by two strings as in the figure. Find the…

A: The mass of the potato:

Q: A baseball pitcher delivers a fast ball. During the throw, the speed of the ball increases from 0 to…

A: Given : Initial Velocity (u) = 0 m/s Final Velocity (v) = 31.5 m/s Time Taken (t) = 0.167 seconds

Q: A 54.0-g Super Ball traveling at 29.0 m/s bounces off a brick wall and rebounds at 21.5 m/s. A…

A: The mass of the ball is 54.0 g. The velocity of bounce back of the ball is 29.0 m/s. The velocity of…

Q: What is the final velocity of a freight train that accelerates at a rate of 0.0852 m/s for 8.25 min,…

A:

Q: A 50.0-g Super Ball traveling at 28.5 m/s bounces off a brick wall and rebounds at 21.5 m/s. A…

A:

Q: A speeder travelling at a constant velocity of 40 m/s passes by a police car that is initially at…

A: Given:  The  velocity of the speeder is v = 40 m/s  The police car is initially on the rest.  The…

Q: A 54.0-g Super Ball traveling at 27.5 m/s bounces off a brick wall and rebounds at 18.0 m/s. A…

A: mass of super ball (m) = 54 g = 0.054 kg Initial velocity (u) = 27.5 msFinal velocity (v) = -18…

Q: An object moves along a straight line and experiences a constant acceleration of +1.53 cm/s2. At t =…

A:

Q: A jet plane lands at a speed of V m/s and travels at the constant speed of V m/s for the first 5 s…

A: Given value--- A jet plane lands at a speed of V m/s and travels at the constant speed of V m/s for…

Q: A speed skater moving to the left across frictionless ice at 8.4 m/sm/s hits a 4.8-mm-wide patch of…

A: Given data:  Initial velocity (V0) = 8.4 m/s Distance traveled by skater (s) = 4.8 m Final velocity…

Q: A soccer defender runs to cover an opposing attacker. The defender is initially at rest, and reaches…

A: Given data: Initial speed of the defender, u=0 Final speed of the defender, v=5.3 m/s Time, t=4.2 s…

Q: A 50.0-g Super Ball traveling at 25.0 m/s bounces off a brick wall and rebounds at 22.0 m/s. A high…

A: The expression for the average accelerations is, a→=vf-vi∆t

Q: A baseball player hits a line drive. Just before the ball is struck, it is moving east at a speed of…

A:

Q: A bullet is fired through a board 20.0 cm thick in such a way that the bullet's line of motion is…

A:

Q: A 15-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is dropped…

A: We have,Mass of the rock : m = 15 (kg)Time taken to reach on earth : t = 1.75 (sec)Time taken to…

Q: An airplane flying West at 240 m/s encounters a headwind of 30 m/s, East. What is the resulting…

A: Write the velocity of the airplane. Write the velocity of the wind.

Q: A bullet leaves a rifle with a velocity of 452m/s.while accelerating through the barrel of the…

A: Given data:  Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 452 m/s Displacement (d) = 0.93 m…

Q: Suppose the crate starts from rest and accelerates at 0.21 m/s/s to the right for 2.4 s. What is the…

A:

Q: When a soccer ball is kicked toward a player and the player deflects the ball by "heading" it, the…

A: Acceleration versus time graph is given for two cases : for bare head , and for helmeted head The…

Q: A car and a jeep are 7 km apart. The car starts from rest and travels towards the jeep with an…

A:

Q: A ball is shot vertically into the air at a velocity of 60 m/s. After 6 seconds, another ball is…

A:

Q: An unwary football player collides with a padded goalpost while running at a velocity of 6.24 m/s…

A: Given Initially velocity of the football player is v0=6.24 m/s Final velocity of the football player…

Q: During a slap shot, a hockey player accelerates the puck from a velocity of 7 m/s to 40 m/s in the…

A: Given: Initial velocity, u=7 m/s Final velocity, v=40 m/s  Time interval, t=3.33×10-2 s   To…

Q: A bullet is fired through a board 10.0 cm thick in such a way that the bullet’s line of motion is…

A:

Q: A model rocket is launched from the ground at rest. The acceleration of the rocket is å = 90 ŷ– .…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a…

A: The speed of the opposing player is The time taken by opposing player is The acceleration of the…

Q: A mountain climber stands at the top of a 57.3 m cliff hanging over a calm pool of water. The…

A:

Q: A student begins at rest and then walks north at a speed of v1 = 0.55 m/s. The student then turns…

A: Given: Speed v1 = 0.55 m/s along north direction Speed v2 = 0.53 m/s along south direction Taking…

Q: A hammer with mass m = 0.456 kg moves horizontally at a velocity of v = 6.5 m/s when it hits a nail…

A: Mass of the hammer is m= 0.456 kginitial velocity u= 6.5 m/sfinal velocity v= 0 m/s ( since the…

Q: A bullet is fired through a board 13.0 cm thick in such a way that the bullet's line of motion is…

A: Initial speed of the bullet u= 450 m/sFinal speed of the bullet v= 350 m/sThickness of board d= 13.0…

Q: You stand on a top of a lighthouse while your friend is on the ground outside. You peered into the…

A: Let us consider the person standing at top of the light house be A and that standing on the ground…

Q: A baseball is hit with a bat and, as a result, its direction is completely reversed and its final…

A: Given values: Contact time,∆t=0.60 s Magnitude of initial speed,vi=v Magnitude of final speed,vf=v2

Q: How long did the ball take to return to the juggler’s hand?

A:

Q: A ball has an initial velocity of 1.50 m/s along the x-axis. Starting at t0=0, the ball receives an…

A: The velocity of an object accelerating is given by v= u+at, where u = initial velocity, a =…

Q: Rocket-powered sleds are used to test the responses of humans to acceleration. Starting from rest,…

A: Given: initial velocity, u = 444 m/s final velocity,v = 0 m/s  time,t = 2.15 s

Q: There was a juggling contest in Harvard University during their intramurals. A juggler throws a ball…

A: As given ball reach the juggler hand   so net displacement in vertical direction is zero. Thus Y =0…

Q: A 50.5-g Super Ball traveling at 29.5 m/s bounces off a brick wall and rebounds at 15.5 m/s. A…

A:

Q: The infamous chicken is dashing toward home plate with a speed of 5.7 m/s when he decides to hit the…

A: (a) The magnitude of acceleration is given by,

Q: An object moves along a straight line and experiences a constant acceleration of +1.36 cm/s2. At t =…

A:

Q: You stand on a top of a lighthouse while your friend is on the ground outside. You peered into the…

A:

Q: A major league baseball player hits a pitch for a home run. It was moving at 40.0 m/s toward the…

A:

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –