Ask question

Ask question

All categories

2 years ago

13

A body starts moving from rest and attends the acceleration of 0.5m/s². calculate the velocity at the end of 3 minutes also find

the distance travelled by it during that time

1 answer:

puteri [66]2 years ago

4 0

Answer:

See below

Explanation:

3 minutes = 180 seconds

v f = at = .5 m/s^2 * 180 s =<u> 90 m/s </u>

<u />

Distance = 1/2 a t^2 = .5 * .5 * 180^2 =<u> 8100 m </u>

You might be interested in

7. A car is travelling along a road at 30 ms when a pedestrian steps into the road 55 m ahead. The

trasher [3.6K]

Answer: Car collide with man

Explanation:

Given

Speed of car is $u=30\ m/s$

Distance of the man from the car is $s=55\ m$

Reaction time $t_r=0.5\ s$

Rate of deceleration $a_d=-10\ m/s^2$

Distance traveled in the reaction time $d_o=30\times 0.5=15\ m$

Net effective distance to cover $d=55-15=40\ m$

Distance required to stop the car

$\Rightarrow v^2-30^2=2(-10)(s)\\\Rightarrow 0-900=-20s\\\Rightarrow s=45\ m$

Require distance is more than that of net effective distance. Hence, car collides with the man.

6 0

3 years ago

Please help important 100 point science quiz!

Norma-Jean [14]

Answer: The answer is C

Explanation:

8 0

3 years ago

A bowling ball with a mass of 10 kg is moving at a speed of 3 m/s. What is its

jasenka [17]

The answer would be C.30J

3 0

4 years ago

The same strength force was exerted in the same direction on both Object A and Object B. Why did Object A go faster than Object

VashaNatasha [74]

Answer:

$m_B > m_A$

the mass of body B must be greater than the mass of body A

Explanation:

Newton's second law establishes a linear relationship between the force, the mass of the body and its acceleration

F = m a

a = F / m

Let's analyze this expression tells us that the force is of equal magnitude for the two bodies, but body A goes faster than body B, this implies that it has more relationships

a_A > a_B

$\frac{F}{m_A} > \frac{F}{m_B}$

$m_B > m_A$

Therefore, for this to happen, the mass of body B must be greater than the mass of body A

6 0

3 years ago

What is quantitative?

7nadin3 [17]

<span>To relate or measure the by the quantity of something, not against the quantity</span>

5 0

4 years ago