Ask question

Ask question

All categories

3 years ago

10

A rope is being used to pull a mass of 10 kg vertically upward. Determine the tension on the rope, if starting from rest, the ma

ss acquires a velocity of 4 ms-1 in 8s (g=10ms?)

1 answer:

Sergio [31]3 years ago

6 0

Answer:

mgh= 10 x 8 x 10

= 800

but you can try 10 x 8 x 4^-1 x 10

You might be interested in

What do you need to measure speed?

Furkat [3]

Answer:

The equation for speed is : distance divided by time.

Hoped I helped-

Sleepy~

7 0

3 years ago

Jack travelled 360 km at an average speed of 80 km/h. Elaine

diamong [38]

Answer:

Average speed of Elain = 60 km/h

Explanation:

Total Distance covered by Jack = 360km

Average Speed of Jack = 80 km/h

Time taken by Jack to complete his journey = Distance / Average speed = 360 km / 80 km/h

Time taken by Jack to complete his journey = 4.5 hours

As it is given the both Jack and Elain travelled the same amount of distance:

Total distance travelled by Elain = 360 km

It is given that Elain took 1.5 hourse more than Jack to cover the distance, so Time taken by Elain to cover the distance is = 4.5 hours + 1.5 hours = 6 hours

Average speed of Elain = Distance/ time = 360 km / 6 hours

Average speed of Elain = 60 km/h

3 0

3 years ago

A .100 kg bullet is flying at 200 m/s. How much energy is the bullet storing due to its motion?

morpeh [17]

KE = 2000 J

Explanation:

KE = (1/2)mv^2

= (1/2)(0.100 kg)(200 m/s)^2

= 2000 J

4 0

2 years ago

To control whether an object is solid or incorporeal (things can pass through it) you would use the:

Zarrin [17]

Answer:

Gamma radiation or Cathode rays

Explanation:

by striking incident gamma or cathode rays onto the solid when placed on a photographic plate

5 0

3 years ago

How much power flows through a circuit with 5 amps and 120 volts?

Ainat [17]

600 watts may be your answer:)

3 0

3 years ago