All categories

3 years ago

A truck accelerates at 5m/s2. Find the truck's mass if the driver applies a force of 425N(can you also show free diagram)?

Physics

2 answers:

Alenkinab [10]3 years ago

8 0

Using
F= Ma
m = F/a
m= 425÷5 = 85Kg

Tom [10]3 years ago

5 0

..i dont know how to make the diagram i only know how to get the mass

f= m*a
we want to know the mass so

m= f/a
m= 425 N / 5 m/s^2
m = 85 kg
i hope that help

You might be interested in

Sally accelerates a 250 kg cart at 3 m/s/s. What must be

Arisa [49]

Net force = mass x acceleration = 250 x 3 = 750 N

3 0

3 years ago

New ocean crust or sea floor is produced when tectonic plates _______.<br> diverge<br> converge

GarryVolchara [31]

Diverge is the right answer

8 0

3 years ago

At height h above the surface of Earth, the gravitational acceleration is What is h? Note: The radius of Earth is 6380 km.

rusak2 [61]

The acceleration of gravity is inversely proportional to
the square of the distance from Earth's center.

The acceleration of gravity is 9.8 m/s² on the Earth's surface ...
6380 km from the center.

If the acceleration of gravity at 'h' is 4.9 m/s² ... 1/2 of what it is
on the surface, then the distance from the center is

(6380 x √2) = 9,023 km (rounded) ,

and 'h' is the distance above the surface

= (9,023 - 6,380) = 2,643 km (rounded) .

4 0

3 years ago

A car weighing 12,000 N is parked on a 36° slope. The car starts to roll down the hill. What is the acceleration of the car?

Delicious77 [7]

Answer: 5.8 m/s squared

Explanation: just got that question lol

4 0

3 years ago

A rocket moves upward from rest with an acceleration of 40 m/s2 for 5 seconds. It then runs out of fuel and continues to move up

Snezhnost [94]

Answer:

Maximum height of rocket = 2538.74 m

Explanation:

We have equation of motion s = ut + 0.5 at²

For first 5 seconds

s = 0 x 5 + 0.5 x 40 x 5² = 500 m

Now let us find out time after 5 seconds rocket move upward.

We have the equation of motion v = u + at

After 5 seconds velocity of rocket

v = 0 + 40 x 5 = 200 m/s

After 5 seconds the velocity reduces 9.8m/s per second due to gravity.

Time of flying after 5 seconds

$t=\frac{200}{9.81}=20.38s$

Distance traveled in this 20.38 s

s = 200 x 20.38 - 0.5 x 9.81 x 20.38² = 2038.74 m

Maximum height of rocket = 500 +2038.74 = 2538.74 m

6 0

3 years ago