A baseball is hit with a horizontal speed of 16 m/s and avertical speed of...

A baseball is hit with a horizontal speed of 16 m/s and a vertical speed of 12 m/s upward. What are these speeds 4 s later?

horizontal speed	m/s
vertical speed	m/s

Expert Solution

Part A.

Initial horizontal speed = 16 m/sec

Since there is no acceleration in horizontal direction, So horizontal velocity remains constant, So

after 4 sec,

Vx = V0x = 16 m/sec

Part B.

Initial Vertical speed = 12 m/sec

In vertical direction there is acceleration due to gravity in downward direction, So a = -g = -9.81 m/sec^2

Using 1st kinematic equation:

V1y = V0y + a*t

V1y = 12 + (-9.81)*4

V1y = -27.24 m/sec

genius_generous answered 2 years ago

A baseball is hit 40 m/s at an angle of 30 degree. A 5 m high...

A baseball is hit 40 m/s at an angle of 30 degree. A 5 m high fence is 125 m away. Does it go over the fence?

A batted baseball is hit with a velocity of 49.7 m/s, starting from an initial height...

A batted baseball is hit with a velocity of 49.7 m/s, starting from an initial height of 4 m. Find how high the ball travels in two cases: (a) a ball hit directly upward (b) a ball hit at an angle of 70 degrees. also find how long the ball is in the air in both cases

A batted baseball is hit with a velocity of 44 m/s, starting from an initial height...

A batted baseball is hit with a velocity of 44 m/s, starting from an initial height of 4 m. Find how high the ball travels in two cases: (a) a ball hit directly upward and (b) a ball hit at an angle of 69° with respect to the horizontal. Also, find how long the ball stays in the air in each case. case a: case b:

After a golf ball is hit it takes off with an initial speed of 28.7 m/s...

After a golf ball is hit it takes off with an initial speed of 28.7 m/s and at an angle of 39.5° with respect to the horizontal. The golf field is flat and horizontal. Neglecting air resistance how far will the golf ball fly? How high will the golf ball rise? How much time will the ball spend in the air? How far would the ball fly if the initial speed was doubled? How much time would the ball spend...

A physics book slides off of a horizontal tabletop with a speed of 3.10 m/s. It...

A physics book slides off of a horizontal tabletop with a speed of 3.10 m/s. It strikes the floor in 0.500s. Ignore air resistance A. find the height of the laptop B. find the horizontal distance from the edge of the C. table to the point where the book strikes the floor D. Find the horizontal component of the book's velocity, just before the book rewaches the floor D. Find the vertical component of the book's velocity just before the...

3) A soccer ball is kicked with an initial horizontal speed of 8 m/s and an...

3) A soccer ball is kicked with an initial horizontal speed of 8 m/s and an initial vertical speed of 6 m/s. Identify the following quantities and include one short sentence to explain your answer using the concepts of projectile motion (no calculations are necessary). Assume that projection and landing height are the same and neglecting air resistance (4 pts): a) The ball’s horizontal speed 0.5 seconds into its flight is: because: b) The ball’s horizontal speed midway through its...

The blood speed in a normal segment of a horizontal artery is 0.100 m/s. An abnormal...

The blood speed in a normal segment of a horizontal artery is 0.100 m/s. An abnormal segment of the artery is narrowed down by an arteriosclerotic plaque to 1/5 of its normal cross-sectional area. What is the difference in blood pressure between the normal and constricted segments of the artery?

A 2.40 kg box is moving to the right with speed 9.00 m/s on a horizontal,...

A 2.40 kg box is moving to the right with speed 9.00 m/s on a horizontal, frictionless surface. At t= 0 a horizontal force is applied to the box. The force is directed to the left and has magnitudeF(t)=( 6.00 N/s2 )t2 a). What distance does the box move from its position at t=0 before its speed is reduced to zero? b). If the force continues to be applied, what is the velocity of the box at 5.00 s ?

A rock is tossed with an initial speed of 20 m/s, 60° above the horizontal. Ignoring...

A rock is tossed with an initial speed of 20 m/s, 60° above the horizontal. Ignoring air resistance, what is its speed 3s after it was thrown? A. 18.9m/s B. 14.6m/s C. 15.7m/s D. 11.2m/s E. 4.3m/s

A 0.990 kg block slides on a frictionless, horizontal surface with a speed of 1.40 m/s....

A 0.990 kg block slides on a frictionless, horizontal surface with a speed of 1.40 m/s. The block encounters an unstretched spring with a force constant of 231 N/m. Before the block comes to rest, the spring is compressed by 9.17 cm. 1) Suppose the force constant of the spring is doubled, but the mass and speed of the block remain the same. By what multiplicative factor do you expect the maximum compression of the spring to change? Explain. 2)...

Question