All categories

3 years ago

If a ball is thrown straight up, where is its acceleration the

Physics

1 answer:

avanturin [10]3 years ago

7 0

Answer:

When a ball is thrown up acceleration is same throughout the journey and velocity is zero at its maximum height. 

Explanation:

The movement of a ball thrown up is completely under the influence of gravity. Thus the only acceleration it can have is the acceleration due to gravity $g=9.8 m/s$ . Hence, at every point in the upward and downward journey its acceleration will be equal to g.

At the maximum height the velocity of the ball will be zero since it is momentarily at rest.

You might be interested in

What scientisists stated that animals, as well as plants, are made of cells.?

Andrews [41]

The answer is Mathias Schleiden and Theodor Schwann

7 0

4 years ago

A jetliner, traveling northward, is landing with a speed of 71.9 m/s. Once the jet touches down, it has 675 m of runway in which

Leviafan [203]

Answer:

The value is $a = -3.7 \ m/s^2$

Explanation:

From the question we are told that

The landing speed is $u = 71.9 \ m/s$

The distance traveled is $d = 675 \ m$

The velocity it is reduced to is $v = 11.3 \ m/s$

Generally the average acceleration is mathematically represented as

$a = \frac{ v^2 - u^2 }{ 2 * d }$

=> $a = \frac{ 11.3^2 - 71.9^2 }{ 2 * 675 }$

=> $a = -3.7 \ m/s^2$

5 0

3 years ago

What to forces effects the momentum of an object

faltersainse [42]

Any force can affect the momentum of an object
if it changes the object's speed.

4 0

4 years ago

Read 2 more answers

A vertical straight wire 35.0 cmcm in length carries a current. You do not know either the magnitude of the current or whether t

12345 [234]

Answer:

$1.714\ \text{A}$

Explanation:

F = Magnetic force = 0.018 N

B = Magnetic field = 0.03 T

L = Length of wire = 35 cm

$\theta$ = Angle between current and magnetic field = $90^{\circ}$

Magnetic force is given by

$F=IBL\sin\theta\\\Rightarrow I=\dfrac{F}{BL\sin\theta}\\\Rightarrow I=\dfrac{0.018}{0.03\times 35\times 10^{-2}\times \sin90^{\circ}}\\\Rightarrow I=1.714\ \text{A}$