With what minimum acceleration can a fireman slide down a rope while breaking
With what minimum acceleration can a fireman slide down a rope while breaking strength of the rope is 2/3 of the weight?
Options
(a) 2/3 g (b) g (c) 1/3 g (d) Zero
Laws of Motion
The mass of a lift is 2000kg. When the tension in the supporting cable is 28000N, then its acceleration is
The mass of a lift is 2000kg. When the tension in the supporting cable is 28000N, then its acceleration is
Options
(a) 4ms⁻² upwards (b) 4 ms⁻² downwards (c) 14 ms⁻² upwards (d) […]
A body under the action of a force F⃗ = 6i⃗–8j⃗+10k⃗, acquires an accelerationof 1 m/s². The mass of this body must be
A body under the action of a force F⃗ = 6i⃗–8j⃗+10k⃗, acquires an acceleration of 1 m/s². The mass of this body must be
Options
(a) 10 kg (b) 20 kg (c) 10 […]