A truck moving on a smooth horizontal surface with a uniform speed u is carrying stone-dust. If a mass $Δ m$ of the stone-dust `leaks down’ from the truck in the time $Δ t$ , the force needed to keep the truck moving at its uniform speed is

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D
The force exerted on the truck due to leaking stone dust is $\frac{Δ m}{Δ t}$ in the vertically upward direction.
Since there is no friction, no force is needed to keep the truck moving with a constant speed in the horizontal direction. Hence the correct choice is (d).

Suggest Corrections

Similar questions

Q. A truck moving on a smooth horizontal surface with a uniform speed 'u' is carrying stone-dust. If a mass

Δ m

of the stone-dust `leaks down’ from the truck in the time

Δ t

, the force needed to keep the truck moving at its uniform speed is

Q. A truck moving on a smooth horizontal surface with a uniform speed 'u' is carrying stone-dust. If a mass

Δ m

of the stone-dust `leaks down’ from the truck in the time

Δ t

, the force needed to keep the truck moving at its uniform speed is

A truck moving on a smooth horizontal surface with a uniform speed u is carrying stone-dust. If a mass $Δ m$ of the stone-dust leaks from the truck in a time $Δ t$ , the force needed to keep the truck moving at its uniform speed is

Q. A truck carrying sand is moving on a smooth horizontal road with a uniform speed u. If a mass

Δ m

of sand leaks in a time

Δ t

from the bottom of the truck, the force needed to keep the truck moving at its uniform speed u is given by:

Q. A truck is moving on a frictionless surface with uniform velocity of 10

m s^{- 1}

/. A leak occurs in the water tank of the truck at the rate of 2

k g s^{- 1}

. What is the speed of truck after 50 s if the mass of truck is 100 kg and mass of water in the truck initially was 100 kg?

Join BYJU'S Learning Program

A truck moving on a smooth horizontal surface with a uniform speed u is carrying stone-dust. If a mass Δm of the stone-dust `leaks down’ from the truck in the time Δt, the force needed to keep the truck moving at its uniform speed is

The correct option is D The force exerted on the truck due to leaking stone dust is ΔmΔt in the vertically upward direction. Since there is no friction, no force is needed to keep the truck moving with a constant speed in the horizontal direction. Hence the correct choice is (d).

A truck moving on a smooth horizontal surface with a uniform speed u is carrying stone-dust. If a mass $Δ m$ of the stone-dust `leaks down’ from the truck in the time $Δ t$ , the force needed to keep the truck moving at its uniform speed is

The correct option is D
The force exerted on the truck due to leaking stone dust is $\frac{Δ m}{Δ t}$ in the vertically upward direction.
Since there is no friction, no force is needed to keep the truck moving with a constant speed in the horizontal direction. Hence the correct choice is (d).