A 500 kg horse pulls a cart of mass 1500 kg along a level road with an acceleration of 1 m / s 2. If the coefficient of sliding friction is 0.2, then the horizontal force exerted by the earth on the horse is

Question

A 500 kg horse pulls a cart of mass 1500 kg along a level road with an acceleration of 1 m / s 2. If the coefficient of sliding friction is 0.2, then the horizontal force exerted by the earth on the horse is (A) 300 kg wt (B) 400 kg wt (C) 500 kg wt (D) 600 kg wt

Tardigrade Admin · Accepted Answer

F=fk=m a F=fk+m a F=μ m g+m a f=m(μ g+a) ∴ F=(500+1500)(0.2 × 10+1) F=6000 N F=600 kg -w t

Q. A $500 k g$ horse pulls a cart of mass $1500 k g$ along a level road with an acceleration of $1 m / s^{2}$ . If the coefficient of sliding friction is $0.2$ , then the horizontal force exerted by the earth on the horse is

300 kg wt

400 kg wt

500 kg wt

600 kg wt

$F = f_{k} = ma$
$F = f_{k} + ma$
$F = μ m g + ma$
$f = m (μg + a)$
$∴ F = (500 + 1500) (0.2 \times 10 + 1)$
$F = 6000 N F = 600 k g - wt$

Q. A 500kg horse pulls a cart of mass 1500kg along a level road with an acceleration of 1m/s2. If the coefficient of sliding friction is 0.2, then the horizontal force exerted by the earth on the horse is